From 2a1cdfa36b05897221831af5206f6e71d4b4932e Mon Sep 17 00:00:00 2001
From: Michael <heluecht@pirati.ca>
Date: Sat, 2 May 2020 08:52:11 +0000
Subject: [PATCH 01/13] Diaspora participations are now atored as activities

---
 database.sql              | 42 +++++++++--------
 src/Protocol/Diaspora.php | 96 ++++++++++++++++++++++++++-------------
 src/Worker/Notifier.php   |  2 +-
 static/dbview.config.php  | 14 ------
 4 files changed, 89 insertions(+), 65 deletions(-)

diff --git a/database.sql b/database.sql
index a68f3d4e5..6c4758c24 100644
--- a/database.sql
+++ b/database.sql
@@ -1,6 +1,6 @@
 -- ------------------------------------------
 -- Friendica 2020.06-dev (Red Hot Poker)
--- DB_UPDATE_VERSION 1341
+-- DB_UPDATE_VERSION 1343
 -- ------------------------------------------
 
 
@@ -666,7 +666,8 @@ CREATE TABLE IF NOT EXISTS `item` (
 	 INDEX `uid_eventid` (`uid`,`event-id`),
 	 INDEX `icid` (`icid`),
 	 INDEX `iaid` (`iaid`),
-	 INDEX `psid_wall` (`psid`,`wall`)
+	 INDEX `psid_wall` (`psid`,`wall`),
+	 INDEX `uri-id` (`uri-id`)
 ) DEFAULT COLLATE utf8mb4_general_ci COMMENT='Structure for all posts';
 
 --
@@ -1539,22 +1540,6 @@ CREATE VIEW `owner-view` AS SELECT
 			INNER JOIN `contact` ON `contact`.`uid` = `user`.`uid` AND `contact`.`self`
 			INNER JOIN `profile` ON `profile`.`uid` = `user`.`uid`;
 
---
--- VIEW participation-view
---
-DROP VIEW IF EXISTS `participation-view`;
-CREATE VIEW `participation-view` AS SELECT 
-	`participation`.`iid` AS `iid`,
-	`contact`.`id` AS `id`,
-	`contact`.`url` AS `url`,
-	`contact`.`name` AS `name`,
-	`contact`.`protocol` AS `protocol`,
-	CASE `contact`.`batch` WHEN '' THEN `fcontact`.`batch` ELSE `contact`.`batch` END AS `batch`,
-	CASE `fcontact`.`network` WHEN '' THEN `contact`.`network` ELSE `fcontact`.`network` END AS `network`
-	FROM `participation`
-			INNER JOIN `contact` ON `contact`.`id` = `participation`.`cid` AND NOT `contact`.`archive`
-			INNER JOIN `fcontact` ON `fcontact`.`id` = `participation`.`fid`;
-
 --
 -- VIEW pending-view
 --
@@ -1577,6 +1562,27 @@ CREATE VIEW `pending-view` AS SELECT
 			INNER JOIN `contact` ON `register`.`uid` = `contact`.`uid`
 			INNER JOIN `user` ON `register`.`uid` = `user`.`uid`;
 
+--
+-- VIEW tag-search-view
+--
+DROP VIEW IF EXISTS `tag-search-view`;
+CREATE VIEW `tag-search-view` AS SELECT 
+	`post-tag`.`uri-id` AS `uri-id`,
+	`item`.`id` AS `iid`,
+	`item`.`uri` AS `uri`,
+	`item`.`guid` AS `guid`,
+	`item`.`uid` AS `uid`,
+	`item`.`private` AS `private`,
+	`item`.`wall` AS `wall`,
+	`item`.`origin` AS `origin`,
+	`item`.`gravity` AS `gravity`,
+	`item`.`received` AS `received`,
+	`tag`.`name` AS `name`
+	FROM `post-tag`
+			INNER JOIN `tag` ON `tag`.`id` = `post-tag`.`tid`
+			INNER JOIN `item` ON `item`.`uri-id` = `post-tag`.`uri-id`
+			WHERE `post-tag`.`type` = 1;
+
 --
 -- VIEW workerqueue-view
 --
diff --git a/src/Protocol/Diaspora.php b/src/Protocol/Diaspora.php
index c8d218ac2..a0047d008 100644
--- a/src/Protocol/Diaspora.php
+++ b/src/Protocol/Diaspora.php
@@ -252,19 +252,25 @@ class Diaspora
 	 * One of the parameters is a contact array.
 	 * This is done to avoid duplicates.
 	 *
-	 * @param integer $thread   The id of the thread
-	 * @param array   $contacts The previously fetched contacts
+	 * @param array $parent   The parent post
+	 * @param array $contacts The previously fetched contacts
 	 *
 	 * @return array of relay servers
 	 * @throws \Exception
 	 */
-	public static function participantsForThread($thread, array $contacts)
+	public static function participantsForThread(array $parent, array $contacts)
 	{
-		$participation = DBA::select('participation-view', [], ['iid' => $thread]);
+		if (!in_array($parent['private'], [Item::PUBLIC, Item::UNLISTED])) {
+			return $contacts;
+		}
 
-		while ($contact = DBA::fetch($participation)) {	
-			if (empty($contact['protocol'])) {
-				$contact['protocol'] = $contact['network'];
+		$items = Item::select(['author-id'], ['parent' => $parent['id']], ['group_by' => ['author-id']]);
+		while ($item = DBA::fetch($items)) {
+			$contact = DBA::selectFirst('contact', ['id', 'url', 'name', 'protocol', 'batch', 'network'],
+				['id' => $item['author-id']]);
+			if (!DBA::isResult($contact)) {
+				// Shouldn't happen
+				continue;
 			}
 
 			$exists = false;
@@ -275,11 +281,11 @@ class Diaspora
 			}
 
 			if (!$exists) {
+				Logger::info('Add participant to receiver list', ['item' => $parent['guid'], 'participant' => $contact['url']]);
 				$contacts[] = $contact;
 			}
 		}
-
-		DBA::close($participation);
+		DBA::close($items);
 
 		return $contacts;
 	}
@@ -2251,18 +2257,32 @@ class Diaspora
 	 * @param array  $importer Array of the importer user
 	 * @param object $data     The message object
 	 *
-	 * @return bool always true
+	 * @return bool success
 	 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
 	 * @throws \ImagickException
 	 */
 	private static function receiveParticipation(array $importer, $data)
 	{
 		$author = strtolower(Strings::escapeTags(XML::unescape($data->author)));
+		$guid = Strings::escapeTags(XML::unescape($data->guid));
 		$parent_guid = Strings::escapeTags(XML::unescape($data->parent_guid));
 
-		$contact_id = Contact::getIdForURL($author);
-		if (!$contact_id) {
-			Logger::log('Contact not found: '.$author);
+		$contact = self::allowedContactByHandle($importer, $author, true);
+		if (!$contact) {
+			return false;
+		}
+
+		if (self::messageExists($importer["uid"], $guid)) {
+			return true;
+		}
+
+		$parent_item = self::parentItem($importer["uid"], $parent_guid, $author, $contact);
+		if (!$parent_item) {
+			return false;
+		}
+
+		if (!in_array($parent_item['private'], [Item::PUBLIC, Item::UNLISTED])) {
+			Logger::info('Item is not public, participation is ignored', ['parent_guid' => $parent_guid, 'guid' => $guid, 'author' => $author]);
 			return false;
 		}
 
@@ -2272,35 +2292,47 @@ class Diaspora
 			return false;
 		}
 
-		$item = Item::selectFirst(['id'], ['guid' => $parent_guid, 'origin' => true, 'private' => [Item::PUBLIC, Item::UNLISTED]]);
-		if (!DBA::isResult($item)) {
-			Logger::log('Item not found, no origin or private: '.$parent_guid);
-			return false;
-		}
+		$author_contact = self::authorContactByUrl($contact, $person, $importer["uid"]);
 
-		$author_parts = explode('@', $author);
-		if (isset($author_parts[1])) {
-			$server = $author_parts[1];
-		} else {
-			// Should never happen
-			$server = $author;
-		}
+		// Store participation
+		$datarray = [];
 
-		Logger::log('Received participation for ID: '.$item['id'].' - Contact: '.$contact_id.' - Server: '.$server, Logger::DEBUG);
+		$datarray["protocol"] = Conversation::PARCEL_DIASPORA;
 
-		if (!DBA::exists('participation', ['iid' => $item['id'], 'server' => $server])) {
-			DBA::insert('participation', ['iid' => $item['id'], 'cid' => $contact_id, 'fid' => $person['id'], 'server' => $server]);
-		}
+		$datarray["uid"] = $importer["uid"];
+		$datarray["contact-id"] = $author_contact["cid"];
+		$datarray["network"]  = $author_contact["network"];
+
+		$datarray["owner-link"] = $datarray["author-link"] = $person["url"];
+		$datarray["owner-id"] = $datarray["author-id"] = Contact::getIdForURL($person["url"], 0);
+
+		$datarray["guid"] = $guid;
+		$datarray["uri"] = self::getUriFromGuid($author, $guid);
+
+		$datarray["verb"] = Activity::FOLLOW;
+		$datarray["gravity"] = GRAVITY_ACTIVITY;
+		$datarray["parent-uri"] = $parent_item["uri"];
+
+		$datarray["object-type"] = Activity\ObjectType::NOTE;
+
+		$datarray["body"] = Activity::FOLLOW;
+
+		// Diaspora doesn't provide a date for a participation
+		$datarray["changed"] = $datarray["created"] = $datarray["edited"] = DateTimeFormat::utcNow();
+
+		$message_id = Item::insert($datarray);
+
+		Logger::info('Participation stored', ['id' => $message_id, 'guid' => $guid, 'parent_guid' => $parent_guid, 'author' => $author]);
 
 		// Send all existing comments and likes to the requesting server
-		$comments = Item::select(['id', 'parent', 'verb', 'self'], ['parent' => $item['id']]);
+		$comments = Item::select(['id', 'parent', 'verb', 'self'], ['parent' => $parent_item['id']]);
 		while ($comment = Item::fetch($comments)) {
 			if ($comment['id'] == $comment['parent']) {
 				continue;
 			}
 
-			Logger::info('Deliver participation', ['item' => $comment['id'], 'contact' => $contact_id]);
-			if (Worker::add(PRIORITY_HIGH, 'Delivery', Delivery::POST, $comment['id'], $contact_id)) {
+			Logger::info('Deliver participation', ['item' => $comment['id'], 'contact' => $author_contact["cid"]]);
+			if (Worker::add(PRIORITY_HIGH, 'Delivery', Delivery::POST, $comment['id'], $author_contact["cid"])) {
 				ItemDeliveryData::incrementQueueCount($comment['id'], 1);
 			}
 		}
diff --git a/src/Worker/Notifier.php b/src/Worker/Notifier.php
index 35a228fce..c9a328e4c 100644
--- a/src/Worker/Notifier.php
+++ b/src/Worker/Notifier.php
@@ -441,7 +441,7 @@ class Notifier
 
 				// Fetch the participation list
 				// The function will ensure that there are no duplicates
-				$relay_list = Diaspora::participantsForThread($target_id, $relay_list);
+				$relay_list = Diaspora::participantsForThread($parent, $relay_list);
 
 				// Add the relay to the list, avoid duplicates.
 				// Don't send community posts to the relay. Forum posts via the Diaspora protocol are looking ugly.
diff --git a/static/dbview.config.php b/static/dbview.config.php
index 0f0d69108..13408d27a 100755
--- a/static/dbview.config.php
+++ b/static/dbview.config.php
@@ -186,20 +186,6 @@ return [
 			INNER JOIN `contact` ON `contact`.`uid` = `user`.`uid` AND `contact`.`self`
 			INNER JOIN `profile` ON `profile`.`uid` = `user`.`uid`"
 	],
-	"participation-view" => [
-		"fields" => [
-			"iid" => ["participation", "iid"],
-			"id" => ["contact", "id"],
-			"url" => ["contact", "url"],
-			"name" => ["contact", "name"],
-			"protocol" => ["contact", "protocol"],
-			"batch" => "CASE `contact`.`batch` WHEN '' THEN `fcontact`.`batch` ELSE `contact`.`batch` END",
-			"network" => "CASE `fcontact`.`network` WHEN '' THEN `contact`.`network` ELSE `fcontact`.`network` END",
-		],
-		"query" => "FROM `participation`
-			INNER JOIN `contact` ON `contact`.`id` = `participation`.`cid` AND NOT `contact`.`archive`
-			INNER JOIN `fcontact` ON `fcontact`.`id` = `participation`.`fid`"
-	],
 	"pending-view" => [
 		"fields" => [
 			"id" => ["register", "id"],

From 00035f7ba040b4047fffdaa9ab9e55107ce86139 Mon Sep 17 00:00:00 2001
From: Michael <heluecht@pirati.ca>
Date: Sat, 2 May 2020 13:12:11 +0000
Subject: [PATCH 02/13] Notifications are now storing the uri-id as well

---
 include/enotify.php           | 43 +++++++++++++++++++++++------------
 static/dbstructure.config.php |  8 ++++---
 2 files changed, 34 insertions(+), 17 deletions(-)

diff --git a/include/enotify.php b/include/enotify.php
index 2ae7a9915..bd96ca5d2 100644
--- a/include/enotify.php
+++ b/include/enotify.php
@@ -107,12 +107,24 @@ function notification($params)
 		$item_id = 0;
 	}
 
+	if (isset($params['item']['uri-id'])) {
+		$uri_id = $params['item']['uri-id'];
+	} else {
+		$uri_id = 0;
+	}
+
 	if (isset($params['parent'])) {
 		$parent_id = $params['parent'];
 	} else {
 		$parent_id = 0;
 	}
 
+	if (isset($params['item']['parent-uri-id'])) {
+		$parent_uri_id = $params['item']['parent-uri-id'];
+	} else {
+		$parent_uri_id = 0;
+	}
+
 	$epreamble = '';
 	$preamble  = '';
 	$subject   = '';
@@ -452,17 +464,19 @@ function notification($params)
 
 	if ($show_in_notification_page) {
 		$notification = DI::notify()->insert([
-			'name'       => $params['source_name'] ?? '',
-			'name_cache' => substr(strip_tags(BBCode::convert($params['source_name'] ?? '')), 0, 255),
-			'url'        => $params['source_link'] ?? '',
-			'photo'      => $params['source_photo'] ?? '',
-			'link'       => $itemlink ?? '',
-			'uid'        => $params['uid'] ?? 0,
-			'iid'        => $item_id ?? 0,
-			'parent'     => $parent_id ?? 0,
-			'type'       => $params['type'] ?? '',
-			'verb'       => $params['verb'] ?? '',
-			'otype'      => $params['otype'] ?? '',
+			'name'          => $params['source_name'] ?? '',
+			'name_cache'    => substr(strip_tags(BBCode::convert($params['source_name'] ?? '')), 0, 255),
+			'url'           => $params['source_link'] ?? '',
+			'photo'         => $params['source_photo'] ?? '',
+			'link'          => $itemlink ?? '',
+			'uid'           => $params['uid'] ?? 0,
+			'iid'           => $item_id ?? 0,
+			'uri-id'        => $uri_id ?? 0,
+			'parent'        => $parent_id ?? 0,
+			'parent-uri-id' => $parent_uri_id ?? 0,			
+			'type'          => $params['type'] ?? '',
+			'verb'          => $params['verb'] ?? '',
+			'otype'         => $params['otype'] ?? '',
 		]);
 
 		$notification->msg = Renderer::replaceMacros($epreamble, ['$itemlink' => $notification->link]);
@@ -486,8 +500,9 @@ function notification($params)
 			if (!DBA::exists('notify-threads', ['master-parent-item' => $params['parent'], 'receiver-uid' => $params['uid']])) {
 				Logger::log("notify_id:" . intval($notify_id) . ", parent: " . intval($params['parent']) . "uid: " . intval($params['uid']), Logger::DEBUG);
 
-				$fields = ['notify-id'    => $notify_id, 'master-parent-item' => $params['parent'],
-				           'receiver-uid' => $params['uid'], 'parent-item' => 0];
+				$fields = ['notify-id' => $notify_id, 'master-parent-item' => $params['parent'],
+					'master-parent-uri-id' => $parent_uri_id,
+					'receiver-uid' => $params['uid'], 'parent-item' => 0];
 				DBA::insert('notify-threads', $fields);
 
 				$additional_mail_header .= "Message-ID: <${id_for_parent}>\n";
@@ -574,7 +589,7 @@ function check_user_notification($itemid) {
  * @throws \Friendica\Network\HTTPException\InternalServerErrorException
  */
 function check_item_notification($itemid, $uid, $notification_type) {
-	$fields = ['id', 'mention', 'tag', 'parent', 'title', 'body',
+	$fields = ['id', 'uri-id', 'mention', 'tag', 'parent', 'parent-uri-id', 'title', 'body',
 		'author-link', 'author-name', 'author-avatar', 'author-id',
 		'guid', 'parent-uri', 'uri', 'contact-id', 'network'];
 	$condition = ['id' => $itemid, 'gravity' => [GRAVITY_PARENT, GRAVITY_COMMENT], 'deleted' => false];
diff --git a/static/dbstructure.config.php b/static/dbstructure.config.php
index 2c3a9fb5f..6f4c069e5 100755
--- a/static/dbstructure.config.php
+++ b/static/dbstructure.config.php
@@ -51,7 +51,7 @@
 use Friendica\Database\DBA;
 
 if (!defined('DB_UPDATE_VERSION')) {
-	define('DB_UPDATE_VERSION', 1343);
+	define('DB_UPDATE_VERSION', 1344);
 }
 
 return [
@@ -927,6 +927,8 @@ return [
 			"link" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
 			"iid" => ["type" => "int unsigned", "not null" => "1", "default" => "0", "relation" => ["item" => "id"], "comment" => "item.id"],
 			"parent" => ["type" => "int unsigned", "not null" => "1", "default" => "0", "relation" => ["item" => "id"], "comment" => ""],
+			"uri-id" => ["type" => "int unsigned", "relation" => ["item-uri" => "id"], "comment" => "Item-uri id of the related post"],
+			"parent-uri-id" => ["type" => "int unsigned", "relation" => ["item-uri" => "id"], "comment" => "Item-uri id of the parent of the related post"],
 			"seen" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => ""],
 			"verb" => ["type" => "varchar(100)", "not null" => "1", "default" => "", "comment" => ""],
 			"otype" => ["type" => "varchar(10)", "not null" => "1", "default" => "", "comment" => ""],
@@ -945,8 +947,8 @@ return [
 		"fields" => [
 			"id" => ["type" => "int unsigned", "not null" => "1", "extra" => "auto_increment", "primary" => "1", "comment" => "sequential ID"],
 			"notify-id" => ["type" => "int unsigned", "not null" => "1", "default" => "0", "relation" => ["notify" => "id"], "comment" => ""],
-			"master-parent-item" => ["type" => "int unsigned", "not null" => "1", "default" => "0", "relation" => ["item" => "id"],
-				"comment" => ""],
+			"master-parent-item" => ["type" => "int unsigned", "not null" => "1", "default" => "0", "relation" => ["item" => "id"], "comment" => ""],
+			"master-parent-uri-id" => ["type" => "int unsigned", "relation" => ["item-uri" => "id"], "comment" => "Item-uri id of the parent of the related post"],
 			"parent-item" => ["type" => "int unsigned", "not null" => "1", "default" => "0", "comment" => ""],
 			"receiver-uid" => ["type" => "mediumint unsigned", "not null" => "1", "default" => "0", "relation" => ["user" => "uid"],
 				"comment" => "User id"],

From 098ba4a667bb5d4d8563f096f408c282c7cdf735 Mon Sep 17 00:00:00 2001
From: Michael <heluecht@pirati.ca>
Date: Sat, 2 May 2020 19:34:02 +0000
Subject: [PATCH 03/13] "item-delivery-data" is now "post-delivery-data"

---
 database.sql                                  | 62 +++++++++++------
 src/Model/Item.php                            | 23 ++++---
 .../DeliveryData.php}                         | 68 +++++++++----------
 src/Protocol/Diaspora.php                     |  6 +-
 src/Worker/APDelivery.php                     | 10 ++-
 src/Worker/Delivery.php                       | 52 +++++++-------
 src/Worker/Notifier.php                       |  8 +--
 static/dbstructure.config.php                 | 38 +++++------
 8 files changed, 147 insertions(+), 120 deletions(-)
 rename src/Model/{ItemDeliveryData.php => Post/DeliveryData.php} (63%)

diff --git a/database.sql b/database.sql
index a68f3d4e5..320ef38e7 100644
--- a/database.sql
+++ b/database.sql
@@ -1,6 +1,6 @@
 -- ------------------------------------------
 -- Friendica 2020.06-dev (Red Hot Poker)
--- DB_UPDATE_VERSION 1341
+-- DB_UPDATE_VERSION 1343
 -- ------------------------------------------
 
 
@@ -666,7 +666,8 @@ CREATE TABLE IF NOT EXISTS `item` (
 	 INDEX `uid_eventid` (`uid`,`event-id`),
 	 INDEX `icid` (`icid`),
 	 INDEX `iaid` (`iaid`),
-	 INDEX `psid_wall` (`psid`,`wall`)
+	 INDEX `psid_wall` (`psid`,`wall`),
+	 INDEX `uri-id` (`uri-id`)
 ) DEFAULT COLLATE utf8mb4_general_ci COMMENT='Structure for all posts';
 
 --
@@ -714,24 +715,6 @@ CREATE TABLE IF NOT EXISTS `item-content` (
 	 INDEX `uri-id` (`uri-id`)
 ) DEFAULT COLLATE utf8mb4_general_ci COMMENT='Content for all posts';
 
---
--- TABLE item-delivery-data
---
-CREATE TABLE IF NOT EXISTS `item-delivery-data` (
-	`iid` int unsigned NOT NULL COMMENT 'Item id',
-	`postopts` text COMMENT 'External post connectors add their network name to this comma-separated string to identify that they should be delivered to these networks during delivery',
-	`inform` mediumtext COMMENT 'Additional receivers of the linked item',
-	`queue_count` mediumint NOT NULL DEFAULT 0 COMMENT 'Initial number of delivery recipients, used as item.delivery_queue_count',
-	`queue_done` mediumint NOT NULL DEFAULT 0 COMMENT 'Number of successful deliveries, used as item.delivery_queue_done',
-	`queue_failed` mediumint NOT NULL DEFAULT 0 COMMENT 'Number of unsuccessful deliveries, used as item.delivery_queue_failed',
-	`activitypub` mediumint NOT NULL DEFAULT 0 COMMENT 'Number of successful deliveries via ActivityPub',
-	`dfrn` mediumint NOT NULL DEFAULT 0 COMMENT 'Number of successful deliveries via DFRN',
-	`legacy_dfrn` mediumint NOT NULL DEFAULT 0 COMMENT 'Number of successful deliveries via legacy DFRN',
-	`diaspora` mediumint NOT NULL DEFAULT 0 COMMENT 'Number of successful deliveries via Diaspora',
-	`ostatus` mediumint NOT NULL DEFAULT 0 COMMENT 'Number of successful deliveries via OStatus',
-	 PRIMARY KEY(`iid`)
-) DEFAULT COLLATE utf8mb4_general_ci COMMENT='Delivery data for items';
-
 --
 -- TABLE item-uri
 --
@@ -1187,6 +1170,24 @@ CREATE TABLE IF NOT EXISTS `tag` (
 	 INDEX `url` (`url`)
 ) DEFAULT COLLATE utf8mb4_general_ci COMMENT='tags and mentions';
 
+--
+-- TABLE post-delivery-data
+--
+CREATE TABLE IF NOT EXISTS `post-delivery-data` (
+	`uri-id` int unsigned NOT NULL COMMENT 'Id of the item-uri table entry that contains the item uri',
+	`postopts` text COMMENT 'External post connectors add their network name to this comma-separated string to identify that they should be delivered to these networks during delivery',
+	`inform` mediumtext COMMENT 'Additional receivers of the linked item',
+	`queue_count` mediumint NOT NULL DEFAULT 0 COMMENT 'Initial number of delivery recipients, used as item.delivery_queue_count',
+	`queue_done` mediumint NOT NULL DEFAULT 0 COMMENT 'Number of successful deliveries, used as item.delivery_queue_done',
+	`queue_failed` mediumint NOT NULL DEFAULT 0 COMMENT 'Number of unsuccessful deliveries, used as item.delivery_queue_failed',
+	`activitypub` mediumint NOT NULL DEFAULT 0 COMMENT 'Number of successful deliveries via ActivityPub',
+	`dfrn` mediumint NOT NULL DEFAULT 0 COMMENT 'Number of successful deliveries via DFRN',
+	`legacy_dfrn` mediumint NOT NULL DEFAULT 0 COMMENT 'Number of successful deliveries via legacy DFRN',
+	`diaspora` mediumint NOT NULL DEFAULT 0 COMMENT 'Number of successful deliveries via Diaspora',
+	`ostatus` mediumint NOT NULL DEFAULT 0 COMMENT 'Number of successful deliveries via OStatus',
+	 PRIMARY KEY(`uri-id`)
+) DEFAULT COLLATE utf8mb4_general_ci COMMENT='Delivery data for items';
+
 --
 -- TABLE post-tag
 --
@@ -1577,6 +1578,27 @@ CREATE VIEW `pending-view` AS SELECT
 			INNER JOIN `contact` ON `register`.`uid` = `contact`.`uid`
 			INNER JOIN `user` ON `register`.`uid` = `user`.`uid`;
 
+--
+-- VIEW tag-search-view
+--
+DROP VIEW IF EXISTS `tag-search-view`;
+CREATE VIEW `tag-search-view` AS SELECT 
+	`post-tag`.`uri-id` AS `uri-id`,
+	`item`.`id` AS `iid`,
+	`item`.`uri` AS `uri`,
+	`item`.`guid` AS `guid`,
+	`item`.`uid` AS `uid`,
+	`item`.`private` AS `private`,
+	`item`.`wall` AS `wall`,
+	`item`.`origin` AS `origin`,
+	`item`.`gravity` AS `gravity`,
+	`item`.`received` AS `received`,
+	`tag`.`name` AS `name`
+	FROM `post-tag`
+			INNER JOIN `tag` ON `tag`.`id` = `post-tag`.`tid`
+			INNER JOIN `item` ON `item`.`uri-id` = `post-tag`.`uri-id`
+			WHERE `post-tag`.`type` = 1;
+
 --
 -- VIEW workerqueue-view
 --
diff --git a/src/Model/Item.php b/src/Model/Item.php
index 1096c2213..c01535ab6 100644
--- a/src/Model/Item.php
+++ b/src/Model/Item.php
@@ -283,7 +283,7 @@ class Item
 
 		// Fetch data from the item-content table whenever there is content there
 		if (self::isLegacyMode()) {
-			$legacy_fields = array_merge(ItemDeliveryData::LEGACY_FIELD_LIST, self::MIXED_CONTENT_FIELDLIST);
+			$legacy_fields = array_merge(Post\DeliveryData::LEGACY_FIELD_LIST, self::MIXED_CONTENT_FIELDLIST);
 			foreach ($legacy_fields as $field) {
 				if (empty($row[$field]) && !empty($row['internal-item-' . $field])) {
 					$row[$field] = $row['internal-item-' . $field];
@@ -687,7 +687,7 @@ class Item
 
 		$fields['item-content'] = array_merge(self::CONTENT_FIELDLIST, self::MIXED_CONTENT_FIELDLIST);
 
-		$fields['item-delivery-data'] = array_merge(ItemDeliveryData::LEGACY_FIELD_LIST, ItemDeliveryData::FIELD_LIST);
+		$fields['post-delivery-data'] = array_merge(Post\DeliveryData::LEGACY_FIELD_LIST, Post\DeliveryData::FIELD_LIST);
 
 		$fields['permissionset'] = ['allow_cid', 'allow_gid', 'deny_cid', 'deny_gid'];
 
@@ -809,8 +809,8 @@ class Item
 			$joins .= " LEFT JOIN `item-content` ON `item-content`.`uri-id` = `item`.`uri-id`";
 		}
 
-		if (strpos($sql_commands, "`item-delivery-data`.") !== false) {
-			$joins .= " LEFT JOIN `item-delivery-data` ON `item-delivery-data`.`iid` = `item`.`id`";
+		if (strpos($sql_commands, "`post-delivery-data`.") !== false) {
+			$joins .= " LEFT JOIN `post-delivery-data` ON `post-delivery-data`.`uri-id` = `item`.`uri-id` AND `item`.`origin`";
 		}
 
 		if (strpos($sql_commands, "`permissionset`.") !== false) {
@@ -850,7 +850,7 @@ class Item
 			$selected[] = 'internal-user-ignored';
 		}
 
-		$legacy_fields = array_merge(ItemDeliveryData::LEGACY_FIELD_LIST, self::MIXED_CONTENT_FIELDLIST);
+		$legacy_fields = array_merge(Post\DeliveryData::LEGACY_FIELD_LIST, self::MIXED_CONTENT_FIELDLIST);
 
 		$selection = [];
 		foreach ($fields as $table => $table_fields) {
@@ -936,7 +936,7 @@ class Item
 			}
 		}
 
-		$delivery_data = ItemDeliveryData::extractFields($fields);
+		$delivery_data = Post\DeliveryData::extractFields($fields);
 
 		$clear_fields = ['bookmark', 'type', 'author-name', 'author-avatar', 'author-link', 'owner-name', 'owner-avatar', 'owner-link', 'postopts', 'inform'];
 		foreach ($clear_fields as $field) {
@@ -1038,7 +1038,7 @@ class Item
 				}
 			}
 
-			ItemDeliveryData::update($item['id'], $delivery_data);
+			Post\DeliveryData::update($item['uri-id'], $delivery_data);
 
 			self::updateThread($item['id']);
 
@@ -1118,7 +1118,7 @@ class Item
 	{
 		Logger::info('Mark item for deletion by id', ['id' => $item_id, 'callstack' => System::callstack()]);
 		// locate item to be deleted
-		$fields = ['id', 'uri', 'uid', 'parent', 'parent-uri', 'origin',
+		$fields = ['id', 'uri', 'uri-id', 'uid', 'parent', 'parent-uri', 'origin',
 			'deleted', 'file', 'resource-id', 'event-id', 'attach',
 			'verb', 'object-type', 'object', 'target', 'contact-id',
 			'icid', 'iaid', 'psid'];
@@ -1202,7 +1202,7 @@ class Item
 			self::markForDeletion(['uri' => $item['uri'], 'uid' => 0, 'deleted' => false], $priority);
 		}
 
-		ItemDeliveryData::delete($item['id']);
+		Post\DeliveryData::delete($item['uri-id']);
 
 		// We don't delete the item-activity here, since we need some of the data for ActivityPub
 
@@ -1903,7 +1903,8 @@ class Item
 			self::insertContent($item);
 		}
 
-		$delivery_data = ItemDeliveryData::extractFields($item);
+		$postfields = $item;
+		$delivery_data = Post\DeliveryData::extractFields($postfields);
 
 		unset($item['postopts']);
 		unset($item['inform']);
@@ -2007,7 +2008,7 @@ class Item
 		}
 
 		if (!empty($item['origin']) || !empty($item['wall']) || !empty($delivery_data['postopts']) || !empty($delivery_data['inform'])) {
-			ItemDeliveryData::insert($current_post, $delivery_data);
+			Post\DeliveryData::insert($item['uri-id'], $delivery_data);
 		}
 
 		DBA::commit();
diff --git a/src/Model/ItemDeliveryData.php b/src/Model/Post/DeliveryData.php
similarity index 63%
rename from src/Model/ItemDeliveryData.php
rename to src/Model/Post/DeliveryData.php
index a26c80b1c..0feb38281 100644
--- a/src/Model/ItemDeliveryData.php
+++ b/src/Model/Post/DeliveryData.php
@@ -19,12 +19,12 @@
  *
  */
 
-namespace Friendica\Model;
+namespace Friendica\Model\Post;
 
 use Friendica\Database\DBA;
 use \BadMethodCallException;
 
-class ItemDeliveryData
+class DeliveryData
 {
 	const LEGACY_FIELD_LIST = [
 		// Legacy fields moved from item table
@@ -55,7 +55,7 @@ class ItemDeliveryData
 	public static function extractFields(array &$fields)
 	{
 		$delivery_data = [];
-		foreach (array_merge(ItemDeliveryData::FIELD_LIST, ItemDeliveryData::LEGACY_FIELD_LIST) as $key => $field) {
+		foreach (array_merge(self::FIELD_LIST, self::LEGACY_FIELD_LIST) as $key => $field) {
 			if (is_int($key) && isset($fields[$field])) {
 				// Legacy field moved from item table
 				$delivery_data[$field] = $fields[$field];
@@ -71,16 +71,16 @@ class ItemDeliveryData
 	}
 
 	/**
-	 * Increments the queue_done for the given item ID.
+	 * Increments the queue_done for the given URI ID.
 	 *
 	 * Avoids racing condition between multiple delivery threads.
 	 *
-	 * @param integer $item_id
+	 * @param integer $uri_id
 	 * @param integer $protocol
 	 * @return bool
 	 * @throws \Exception
 	 */
-	public static function incrementQueueDone($item_id, $protocol = 0)
+	public static function incrementQueueDone(int $uri_id, int $protocol = 0)
 	{
 		$sql = '';
 
@@ -102,69 +102,69 @@ class ItemDeliveryData
 				break;
 		}
 
-		return DBA::e('UPDATE `item-delivery-data` SET `queue_done` = `queue_done` + 1' . $sql . ' WHERE `iid` = ?', $item_id);
+		return DBA::e('UPDATE `post-delivery-data` SET `queue_done` = `queue_done` + 1' . $sql . ' WHERE `uri-id` = ?', $uri_id);
 	}
 
 	/**
-	 * Increments the queue_failed for the given item ID.
+	 * Increments the queue_failed for the given URI ID.
 	 *
 	 * Avoids racing condition between multiple delivery threads.
 	 *
-	 * @param integer $item_id
+	 * @param integer $uri_id
 	 * @return bool
 	 * @throws \Exception
 	 */
-	public static function incrementQueueFailed($item_id)
+	public static function incrementQueueFailed(int $uri_id)
 	{
-		return DBA::e('UPDATE `item-delivery-data` SET `queue_failed` = `queue_failed` + 1 WHERE `iid` = ?', $item_id);
+		return DBA::e('UPDATE `post-delivery-data` SET `queue_failed` = `queue_failed` + 1 WHERE `uri-id` = ?', $uri_id);
 	}
 
 	/**
-	 * Increments the queue_count for the given item ID.
+	 * Increments the queue_count for the given URI ID.
 	 *
-	 * @param integer $item_id
+	 * @param integer $uri_id
 	 * @param integer $increment
 	 * @return bool
 	 * @throws \Exception
 	 */
-	public static function incrementQueueCount(int $item_id, int $increment = 1)
+	public static function incrementQueueCount(int $uri_id, int $increment = 1)
 	{
-		return DBA::e('UPDATE `item-delivery-data` SET `queue_count` = `queue_count` + ? WHERE `iid` = ?', $increment, $item_id);
+		return DBA::e('UPDATE `post-delivery-data` SET `queue_count` = `queue_count` + ? WHERE `uri-id` = ?', $increment, $uri_id);
 	}
 
 	/**
-	 * Insert a new item delivery data entry
+	 * Insert a new URI delivery data entry
 	 *
-	 * @param integer $item_id
+	 * @param integer $uri_id
 	 * @param array   $fields
 	 * @return bool
 	 * @throws \Exception
 	 */
-	public static function insert($item_id, array $fields)
+	public static function insert(int $uri_id, array $fields)
 	{
-		if (empty($item_id)) {
-			throw new BadMethodCallException('Empty item_id');
+		if (empty($uri_id)) {
+			throw new BadMethodCallException('Empty URI_id');
 		}
 
-		$fields['iid'] = $item_id;
+		$fields['uri-id'] = $uri_id;
 
-		return DBA::insert('item-delivery-data', $fields);
+		return DBA::insert('post-delivery-data', $fields);
 	}
 
 	/**
-	 * Update/Insert item delivery data
+	 * Update/Insert URI delivery data
 	 *
 	 * If you want to update queue_done, please use incrementQueueDone instead.
 	 *
-	 * @param integer $item_id
+	 * @param integer $uri_id
 	 * @param array   $fields
 	 * @return bool
 	 * @throws \Exception
 	 */
-	public static function update($item_id, array $fields)
+	public static function update(int $uri_id, array $fields)
 	{
-		if (empty($item_id)) {
-			throw new BadMethodCallException('Empty item_id');
+		if (empty($uri_id)) {
+			throw new BadMethodCallException('Empty URI_id');
 		}
 
 		if (empty($fields)) {
@@ -172,22 +172,22 @@ class ItemDeliveryData
 			return true;
 		}
 
-		return DBA::update('item-delivery-data', $fields, ['iid' => $item_id], true);
+		return DBA::update('post-delivery-data', $fields, ['uri-id' => $uri_id], true);
 	}
 
 	/**
-	 * Delete item delivery data
+	 * Delete URI delivery data
 	 *
-	 * @param integer $item_id
+	 * @param integer $uri_id
 	 * @return bool
 	 * @throws \Exception
 	 */
-	public static function delete($item_id)
+	public static function delete(int $uri_id)
 	{
-		if (empty($item_id)) {
-			throw new BadMethodCallException('Empty item_id');
+		if (empty($uri_id)) {
+			throw new BadMethodCallException('Empty URI_id');
 		}
 
-		return DBA::delete('item-delivery-data', ['iid' => $item_id]);
+		return DBA::delete('post-delivery-data', ['uri-id' => $uri_id]);
 	}
 }
diff --git a/src/Protocol/Diaspora.php b/src/Protocol/Diaspora.php
index a91c5cdf8..0a97f39a5 100644
--- a/src/Protocol/Diaspora.php
+++ b/src/Protocol/Diaspora.php
@@ -36,8 +36,8 @@ use Friendica\Model\Conversation;
 use Friendica\Model\GContact;
 use Friendica\Model\Item;
 use Friendica\Model\ItemURI;
-use Friendica\Model\ItemDeliveryData;
 use Friendica\Model\Mail;
+use Friendica\Model\Post;
 use Friendica\Model\Tag;
 use Friendica\Model\User;
 use Friendica\Network\Probe;
@@ -2293,7 +2293,7 @@ class Diaspora
 		}
 
 		// Send all existing comments and likes to the requesting server
-		$comments = Item::select(['id', 'parent', 'verb', 'self'], ['parent' => $item['id']]);
+		$comments = Item::select(['id', 'uri-id', 'parent', 'verb', 'self'], ['parent' => $item['id']]);
 		while ($comment = Item::fetch($comments)) {
 			if ($comment['id'] == $comment['parent']) {
 				continue;
@@ -2301,7 +2301,7 @@ class Diaspora
 
 			Logger::info('Deliver participation', ['item' => $comment['id'], 'contact' => $contact_id]);
 			if (Worker::add(PRIORITY_HIGH, 'Delivery', Delivery::POST, $comment['id'], $contact_id)) {
-				ItemDeliveryData::incrementQueueCount($comment['id'], 1);
+				Post\DeliveryData::incrementQueueCount($comment['uri-id'], 1);
 			}
 		}
 		DBA::close($comments);
diff --git a/src/Worker/APDelivery.php b/src/Worker/APDelivery.php
index 60752896f..609bb8888 100644
--- a/src/Worker/APDelivery.php
+++ b/src/Worker/APDelivery.php
@@ -23,7 +23,8 @@ namespace Friendica\Worker;
 
 use Friendica\Core\Logger;
 use Friendica\Core\Worker;
-use Friendica\Model\ItemDeliveryData;
+use Friendica\Model\Item;
+use Friendica\Model\Post;
 use Friendica\Protocol\ActivityPub;
 use Friendica\Util\HTTPSignature;
 
@@ -67,10 +68,13 @@ class APDelivery
 			}
 		}
 
+		// This should never fail and is temporariy (until the move to )
+		$item = Item::selectFirst(['uri-id'], ['id' => $target_id]);
+
 		if (!$success && !Worker::defer() && in_array($cmd, [Delivery::POST])) {
-			ItemDeliveryData::incrementQueueFailed($target_id);
+			Post\DeliveryData::incrementQueueFailed($item['uri-id']);
 		} elseif ($success && in_array($cmd, [Delivery::POST])) {
-			ItemDeliveryData::incrementQueueDone($target_id, ItemDeliveryData::ACTIVITYPUB);
+			Post\DeliveryData::incrementQueueDone($item['uri-id'], Post\DeliveryData::ACTIVITYPUB);
 		}
 	}
 }
diff --git a/src/Worker/Delivery.php b/src/Worker/Delivery.php
index 94a0f4902..0a865cb3a 100644
--- a/src/Worker/Delivery.php
+++ b/src/Worker/Delivery.php
@@ -58,14 +58,14 @@ class Delivery
 		if ($cmd == self::MAIL) {
 			$target_item = DBA::selectFirst('mail', [], ['id' => $target_id]);
 			if (!DBA::isResult($target_item)) {
-				self::setFailedQueue($cmd, $target_id);
+				self::setFailedQueue($cmd, $target_item);
 				return;
 			}
 			$uid = $target_item['uid'];
 		} elseif ($cmd == self::SUGGESTION) {
 			$target_item = DBA::selectFirst('fsuggest', [], ['id' => $target_id]);
 			if (!DBA::isResult($target_item)) {
-				self::setFailedQueue($cmd, $target_id);
+				self::setFailedQueue($cmd, $target_item);
 				return;
 			}
 			$uid = $target_item['uid'];
@@ -75,7 +75,7 @@ class Delivery
 		} else {
 			$item = Model\Item::selectFirst(['parent'], ['id' => $target_id]);
 			if (!DBA::isResult($item) || empty($item['parent'])) {
-				self::setFailedQueue($cmd, $target_id);
+				self::setFailedQueue($cmd, $target_item);
 				return;
 			}
 			$parent_id = intval($item['parent']);
@@ -97,13 +97,13 @@ class Delivery
 
 			if (empty($target_item)) {
 				Logger::log('Item ' . $target_id . "wasn't found. Quitting here.");
-				self::setFailedQueue($cmd, $target_id);
+				self::setFailedQueue($cmd, $target_item);
 				return;
 			}
 
 			if (empty($parent)) {
 				Logger::log('Parent ' . $parent_id . ' for item ' . $target_id . "wasn't found. Quitting here.");
-				self::setFailedQueue($cmd, $target_id);
+				self::setFailedQueue($cmd, $target_item);
 				return;
 			}
 
@@ -113,7 +113,7 @@ class Delivery
 				$uid = $target_item['uid'];
 			} else {
 				Logger::log('Only public users for item ' . $target_id, Logger::DEBUG);
-				self::setFailedQueue($cmd, $target_id);
+				self::setFailedQueue($cmd, $target_item);
 				return;
 			}
 
@@ -127,7 +127,7 @@ class Delivery
 
 			if (!empty($contact_id) && Model\Contact::isArchived($contact_id)) {
 				Logger::info('Contact is archived', ['id' => $contact_id, 'cmd' => $cmd, 'item' => $target_item['id']]);
-				self::setFailedQueue($cmd, $target_id);
+				self::setFailedQueue($cmd, $target_item);
 				return;
 			}
 
@@ -187,7 +187,7 @@ class Delivery
 
 		$owner = Model\User::getOwnerDataById($uid);
 		if (!DBA::isResult($owner)) {
-			self::setFailedQueue($cmd, $target_id);
+			self::setFailedQueue($cmd, $target_item);
 			return;
 		}
 
@@ -196,12 +196,12 @@ class Delivery
 			['id' => $contact_id, 'blocked' => false, 'pending' => false, 'self' => false]
 		);
 		if (!DBA::isResult($contact)) {
-			self::setFailedQueue($cmd, $target_id);
+			self::setFailedQueue($cmd, $target_item);
 			return;
 		}
 
 		if (Network::isUrlBlocked($contact['url'])) {
-			self::setFailedQueue($cmd, $target_id);
+			self::setFailedQueue($cmd, $target_item);
 			return;
 		}
 
@@ -242,16 +242,16 @@ class Delivery
 	/**
 	 * Increased the "failed" counter in the item delivery data
 	 *
-	 * @param string  $cmd Command
-	 * @param integer $id  Item id
+	 * @param string $cmd  Command
+	 * @param array  $item Item array
 	 */
-	private static function setFailedQueue(string $cmd, int $id)
+	private static function setFailedQueue(string $cmd, array $item)
 	{
 		if (!in_array($cmd, [Delivery::POST, Delivery::POKE])) {
 			return;
 		}
 
-		Model\ItemDeliveryData::incrementQueueFailed($id);
+		Model\Post\DeliveryData::incrementQueueFailed($item['uri-id'] ?? $item['id']);
 	}
 
 	/**
@@ -335,13 +335,13 @@ class Delivery
 			DFRN::import($atom, $target_importer);
 
 			if (in_array($cmd, [Delivery::POST, Delivery::POKE])) {
-				Model\ItemDeliveryData::incrementQueueDone($target_item['id'], Model\ItemDeliveryData::DFRN);
+				Model\Post\DeliveryData::incrementQueueDone($target_item['uri-id'], Model\Post\DeliveryData::DFRN);
 			}
 
 			return;
 		}
 
-		$protocol = Model\ItemDeliveryData::DFRN;
+		$protocol = Model\Post\DeliveryData::DFRN;
 
 		// We don't have a relationship with contacts on a public post.
 		// Se we transmit with the new method and via Diaspora as a fallback
@@ -357,9 +357,9 @@ class Delivery
 
 				if (in_array($cmd, [Delivery::POST, Delivery::POKE])) {
 					if (($deliver_status >= 200) && ($deliver_status <= 299)) {
-						Model\ItemDeliveryData::incrementQueueDone($target_item['id'], $protocol);
+						Model\Post\DeliveryData::incrementQueueDone($target_item['uri-id'], $protocol);
 					} else {
-						Model\ItemDeliveryData::incrementQueueFailed($target_item['id']);
+						Model\Post\DeliveryData::incrementQueueFailed($target_item['uri-id']);
 					}
 				}
 				return;
@@ -376,11 +376,11 @@ class Delivery
 			if ($deliver_status < 200) {
 				// Legacy DFRN
 				$deliver_status = DFRN::deliver($owner, $contact, $atom);
-				$protocol = Model\ItemDeliveryData::LEGACY_DFRN;
+				$protocol = Model\Post\DeliveryData::LEGACY_DFRN;
 			}
 		} else {
 			$deliver_status = DFRN::deliver($owner, $contact, $atom);
-			$protocol = Model\ItemDeliveryData::LEGACY_DFRN;
+			$protocol = Model\Post\DeliveryData::LEGACY_DFRN;
 		}
 
 		Logger::info('DFRN Delivery', ['cmd' => $cmd, 'url' => $contact['url'], 'guid' => ($target_item['guid'] ?? '') ?: $target_item['id'], 'return' => $deliver_status]);
@@ -390,7 +390,7 @@ class Delivery
 			Model\Contact::unmarkForArchival($contact);
 
 			if (in_array($cmd, [Delivery::POST, Delivery::POKE])) {
-				Model\ItemDeliveryData::incrementQueueDone($target_item['id'], $protocol);
+				Model\Post\DeliveryData::incrementQueueDone($target_item['uri-id'], $protocol);
 			}
 		} else {
 			// The message could not be delivered. We mark the contact as "dead"
@@ -398,7 +398,7 @@ class Delivery
 
 			Logger::info('Delivery failed: defer message', ['id' => ($target_item['guid'] ?? '') ?: $target_item['id']]);
 			if (!Worker::defer() && in_array($cmd, [Delivery::POST, Delivery::POKE])) {
-				Model\ItemDeliveryData::incrementQueueFailed($target_item['id']);
+				Model\Post\DeliveryData::incrementQueueFailed($target_item['uri-id']);
 			}
 		}
 	}
@@ -475,7 +475,7 @@ class Delivery
 			Model\Contact::unmarkForArchival($contact);
 
 			if (in_array($cmd, [Delivery::POST, Delivery::POKE])) {
-				Model\ItemDeliveryData::incrementQueueDone($target_item['id'], Model\ItemDeliveryData::DIASPORA);
+				Model\Post\DeliveryData::incrementQueueDone($target_item['uri-id'], Model\Post\DeliveryData::DIASPORA);
 			}
 		} else {
 			// The message could not be delivered. We mark the contact as "dead"
@@ -490,10 +490,10 @@ class Delivery
 				Logger::info('Delivery failed: defer message', ['id' => ($target_item['guid'] ?? '') ?: $target_item['id']]);
 				// defer message for redelivery
 				if (!Worker::defer() && in_array($cmd, [Delivery::POST, Delivery::POKE])) {
-					Model\ItemDeliveryData::incrementQueueFailed($target_item['id']);
+					Model\Post\DeliveryData::incrementQueueFailed($target_item['uri-id']);
 				}
 			} elseif (in_array($cmd, [Delivery::POST, Delivery::POKE])) {
-				Model\ItemDeliveryData::incrementQueueFailed($target_item['id']);
+				Model\Post\DeliveryData::incrementQueueFailed($target_item['uri-id']);
 			}
 		}
 	}
@@ -603,7 +603,7 @@ class Delivery
 
 		Email::send($addr, $subject, $headers, $target_item);
 
-		Model\ItemDeliveryData::incrementQueueDone($target_item['id'], Model\ItemDeliveryData::MAIL);
+		Model\Post\DeliveryData::incrementQueueDone($target_item['uri-id'], Model\Post\DeliveryData::MAIL);
 
 		Logger::info('Delivered via mail', ['guid' => $target_item['guid'], 'to' => $addr, 'subject' => $subject]);
 	}
diff --git a/src/Worker/Notifier.php b/src/Worker/Notifier.php
index 35a228fce..a9fadf251 100644
--- a/src/Worker/Notifier.php
+++ b/src/Worker/Notifier.php
@@ -32,7 +32,7 @@ use Friendica\Model\Contact;
 use Friendica\Model\Conversation;
 use Friendica\Model\Group;
 use Friendica\Model\Item;
-use Friendica\Model\ItemDeliveryData;
+use Friendica\Model\Post;
 use Friendica\Model\PushSubscriber;
 use Friendica\Model\User;
 use Friendica\Network\Probe;
@@ -573,7 +573,7 @@ class Notifier
 				/// @TODO Redeliver/queue these items on failure, though there is no contact record
 				$delivery_queue_count++;
 				Salmon::slapper($owner, $url, $slap);
-				ItemDeliveryData::incrementQueueDone($target_id, ItemDeliveryData::OSTATUS);
+				Post\DeliveryData::incrementQueueDone($target_item['uri-id'], Post\DeliveryData::OSTATUS);
 			}
 		}
 
@@ -595,11 +595,11 @@ class Notifier
 			// Workaround for pure connector posts
 			if (in_array($cmd, [Delivery::POST, Delivery::POKE])) {
 				if ($delivery_queue_count == 0) {
-					ItemDeliveryData::incrementQueueDone($target_item['id']);
+					Post\DeliveryData::incrementQueueDone($target_item['uri-id']);
 					$delivery_queue_count = 1;
 				}
 
-				ItemDeliveryData::incrementQueueCount($target_item['id'], $delivery_queue_count);
+				Post\DeliveryData::incrementQueueCount($target_item['uri-id'], $delivery_queue_count);
 			}
 		}
 
diff --git a/static/dbstructure.config.php b/static/dbstructure.config.php
index 2c3a9fb5f..085d544fa 100755
--- a/static/dbstructure.config.php
+++ b/static/dbstructure.config.php
@@ -804,25 +804,6 @@ return [
 			"uri-id" => ["uri-id"]
 		]
 	],
-	"item-delivery-data" => [
-		"comment" => "Delivery data for items",
-		"fields" => [
-			"iid" => ["type" => "int unsigned", "not null" => "1", "primary" => "1", "relation" => ["item" => "id"], "comment" => "Item id"],
-			"postopts" => ["type" => "text", "comment" => "External post connectors add their network name to this comma-separated string to identify that they should be delivered to these networks during delivery"],
-			"inform" => ["type" => "mediumtext", "comment" => "Additional receivers of the linked item"],
-			"queue_count" => ["type" => "mediumint", "not null" => "1", "default" => "0", "comment" => "Initial number of delivery recipients, used as item.delivery_queue_count"],
-			"queue_done" => ["type" => "mediumint", "not null" => "1", "default" => "0", "comment" => "Number of successful deliveries, used as item.delivery_queue_done"],
-			"queue_failed" => ["type" => "mediumint", "not null" => "1", "default" => "0", "comment" => "Number of unsuccessful deliveries, used as item.delivery_queue_failed"],
-			"activitypub" => ["type" => "mediumint", "not null" => "1", "default" => "0", "comment" => "Number of successful deliveries via ActivityPub"],
-			"dfrn" => ["type" => "mediumint", "not null" => "1", "default" => "0", "comment" => "Number of successful deliveries via DFRN"],
-			"legacy_dfrn" => ["type" => "mediumint", "not null" => "1", "default" => "0", "comment" => "Number of successful deliveries via legacy DFRN"],
-			"diaspora" => ["type" => "mediumint", "not null" => "1", "default" => "0", "comment" => "Number of successful deliveries via Diaspora"],
-			"ostatus" => ["type" => "mediumint", "not null" => "1", "default" => "0", "comment" => "Number of successful deliveries via OStatus"],
-		],
-		"indexes" => [
-			"PRIMARY" => ["iid"],
-		]
-	],
 	"item-uri" => [
 		"comment" => "URI and GUID for items",
 		"fields" => [
@@ -1306,6 +1287,25 @@ return [
 			"url" => ["url"]
 		]
 	],
+	"post-delivery-data" => [
+		"comment" => "Delivery data for items",
+		"fields" => [
+			"uri-id" => ["type" => "int unsigned", "not null" => "1", "primary" => "1", "relation" => ["item-uri" => "id"], "comment" => "Id of the item-uri table entry that contains the item uri"],
+			"postopts" => ["type" => "text", "comment" => "External post connectors add their network name to this comma-separated string to identify that they should be delivered to these networks during delivery"],
+			"inform" => ["type" => "mediumtext", "comment" => "Additional receivers of the linked item"],
+			"queue_count" => ["type" => "mediumint", "not null" => "1", "default" => "0", "comment" => "Initial number of delivery recipients, used as item.delivery_queue_count"],
+			"queue_done" => ["type" => "mediumint", "not null" => "1", "default" => "0", "comment" => "Number of successful deliveries, used as item.delivery_queue_done"],
+			"queue_failed" => ["type" => "mediumint", "not null" => "1", "default" => "0", "comment" => "Number of unsuccessful deliveries, used as item.delivery_queue_failed"],
+			"activitypub" => ["type" => "mediumint", "not null" => "1", "default" => "0", "comment" => "Number of successful deliveries via ActivityPub"],
+			"dfrn" => ["type" => "mediumint", "not null" => "1", "default" => "0", "comment" => "Number of successful deliveries via DFRN"],
+			"legacy_dfrn" => ["type" => "mediumint", "not null" => "1", "default" => "0", "comment" => "Number of successful deliveries via legacy DFRN"],
+			"diaspora" => ["type" => "mediumint", "not null" => "1", "default" => "0", "comment" => "Number of successful deliveries via Diaspora"],
+			"ostatus" => ["type" => "mediumint", "not null" => "1", "default" => "0", "comment" => "Number of successful deliveries via OStatus"],
+		],
+		"indexes" => [
+			"PRIMARY" => ["uri-id"],
+		]
+	],
 	"post-tag" => [
 		"comment" => "post relation to tags",
 		"fields" => [

From 1a4beaf061123cf74dc80230636efbf20bd13659 Mon Sep 17 00:00:00 2001
From: Michael <heluecht@pirati.ca>
Date: Sat, 2 May 2020 21:27:37 +0000
Subject: [PATCH 04/13] post update function added

---
 src/Database/PostUpdate.php   | 58 +++++++++++++++++++++++++++++++++--
 static/dbstructure.config.php |  2 +-
 2 files changed, 57 insertions(+), 3 deletions(-)

diff --git a/src/Database/PostUpdate.php b/src/Database/PostUpdate.php
index 9ae7691d5..bb3b11160 100644
--- a/src/Database/PostUpdate.php
+++ b/src/Database/PostUpdate.php
@@ -72,6 +72,9 @@ class PostUpdate
 		if (!self::update1342()) {
 			return false;
 		}
+		if (!self::update1345()) {
+			return false;
+		}
 
 		return true;
 	}
@@ -559,7 +562,6 @@ class PostUpdate
 
 		Logger::info('Start', ['item' => $id]);
 
-		$start_id = $id;
 		$rows = 0;
 
 		$items = DBA::p("SELECT `uri-id`,`body` FROM `item-content` WHERE
@@ -613,7 +615,6 @@ class PostUpdate
 
 		Logger::info('Start', ['item' => $id]);
 
-		$start_id = $id;
 		$rows = 0;
 
 		$terms = DBA::p("SELECT `term`.`tid`, `item`.`uri-id`, `term`.`type`, `term`.`term`, `term`.`url`, `item-content`.`body`
@@ -667,4 +668,57 @@ class PostUpdate
 
 		return false;
 	}
+
+	/**
+	 * Fill the "post-delivery-data" table with data from the "item-delivery-data" table
+	 *
+	 * @return bool "true" when the job is done
+	 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
+	 */
+	private static function update1345()
+	{
+		// Was the script completed?
+		if (DI::config()->get('system', 'post_update_version') >= 1345) {
+			return true;
+		}
+
+		$id = DI::config()->get('system', 'post_update_version_1345_id', 0);
+
+		Logger::info('Start', ['item' => $id]);
+
+		$rows = 0;
+
+		$deliveries = DBA::p("SELECT `uri-id`, `iid`, `item-delivery-data`.`postopts`, `item-delivery-data`.`inform`,
+			`queue_count`, `queue_done`, `activitypub`, `dfrn`, `diaspora`, `ostatus`, `legacy_dfrn`, `queue_failed`
+			FROM `item-delivery-data`
+			INNER JOIN `item` ON `item`.`id` = `item-delivery-data`.`iid`
+			WHERE `iid` >= ? ORDER BY `iid` LIMIT 10000", $id);
+
+		if (DBA::errorNo() != 0) {
+			Logger::error('Database error', ['no' => DBA::errorNo(), 'message' => DBA::errorMessage()]);
+			return false;
+		}
+
+		while ($delivery = DBA::fetch($deliveries)) {
+			$id = $delivery['iid'];
+			unset($delivery['iid']);
+			DBA::insert('post-delivery-data', $delivery);
+			++$rows;
+		}
+		DBA::close($deliveries);
+
+		DI::config()->set('system', 'post_update_version_1345_id', $id);
+
+		Logger::info('Processed', ['rows' => $rows, 'last' => $id]);
+
+		// When there are less than 100 items processed this means that we reached the end
+		// The other entries will then be processed with the regular functionality
+		if ($rows < 100) {
+			DI::config()->set('system', 'post_update_version', 1345);
+			Logger::info('Done');
+			return true;
+		}
+
+		return false;
+	}
 }
diff --git a/static/dbstructure.config.php b/static/dbstructure.config.php
index 085d544fa..9c5625980 100755
--- a/static/dbstructure.config.php
+++ b/static/dbstructure.config.php
@@ -51,7 +51,7 @@
 use Friendica\Database\DBA;
 
 if (!defined('DB_UPDATE_VERSION')) {
-	define('DB_UPDATE_VERSION', 1343);
+	define('DB_UPDATE_VERSION', 1345);
 }
 
 return [

From c141a3eb7951a7b171e700ebfdaba83a154f6f40 Mon Sep 17 00:00:00 2001
From: Michael <heluecht@pirati.ca>
Date: Sat, 2 May 2020 22:02:29 +0000
Subject: [PATCH 05/13] Corrected variable name

---
 src/Model/Item.php | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/src/Model/Item.php b/src/Model/Item.php
index c01535ab6..334fddbd5 100644
--- a/src/Model/Item.php
+++ b/src/Model/Item.php
@@ -1903,8 +1903,7 @@ class Item
 			self::insertContent($item);
 		}
 
-		$postfields = $item;
-		$delivery_data = Post\DeliveryData::extractFields($postfields);
+		$delivery_data = Post\DeliveryData::extractFields($item);
 
 		unset($item['postopts']);
 		unset($item['inform']);

From f291b96cbcca9292c90163d3b1a720602dc06a43 Mon Sep 17 00:00:00 2001
From: Michael <heluecht@pirati.ca>
Date: Sat, 2 May 2020 22:49:47 +0000
Subject: [PATCH 06/13] Fixing tests

---
 tests/datasets/api.fixture.php | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/tests/datasets/api.fixture.php b/tests/datasets/api.fixture.php
index c9c16a33f..54401152a 100644
--- a/tests/datasets/api.fixture.php
+++ b/tests/datasets/api.fixture.php
@@ -27,7 +27,7 @@ return [
 	'photo',
 	'workerqueue',
 	'mail',
-	'item-delivery-data',
+	'post-delivery-data',
 	// Base test config to avoid notice messages
 	'config'  => [
 		[
@@ -103,6 +103,7 @@ return [
 	'item'    => [
 		[
 			'id'          => 1,
+			'uri-id'      => 1,
 			'visible'     => 1,
 			'contact-id'  => 42,
 			'author-id'   => 42,
@@ -123,6 +124,7 @@ return [
 		],
 		[
 			'id'          => 2,
+			'uri-id'      => 2,
 			'visible'     => 1,
 			'contact-id'  => 42,
 			'author-id'   => 42,
@@ -140,6 +142,7 @@ return [
 		[
 
 			'id'          => 3,
+			'uri-id'      => 3,
 			'visible'     => 1,
 			'contact-id'  => 43,
 			'author-id'   => 43,
@@ -156,6 +159,7 @@ return [
 		],
 		[
 			'id'          => 4,
+			'uri-id'      => 4,
 			'visible'     => 1,
 			'contact-id'  => 44,
 			'author-id'   => 44,
@@ -173,6 +177,7 @@ return [
 		[
 
 			'id'          => 5,
+			'uri-id'      => 5,
 			'visible'     => 1,
 			'contact-id'  => 42,
 			'author-id'   => 42,
@@ -193,6 +198,7 @@ return [
 		],
 		[
 			'id'          => 6,
+			'uri-id'      => 6,
 			'visible'     => 1,
 			'contact-id'  => 44,
 			'author-id'   => 44,
@@ -220,6 +226,7 @@ return [
 			'uid' => 42,
 			'link' => 'http://localhost/notification/1',
 			'iid' => 4,
+			'uri-id' => 4,
 			'seen' => 0,
 			'verb' => '',
 			'otype' => 'item',

From 1ec3cc2fdc795aa8c30f585b1e7c34982c0dcacd Mon Sep 17 00:00:00 2001
From: Michael <heluecht@pirati.ca>
Date: Sat, 2 May 2020 23:16:42 +0000
Subject: [PATCH 07/13] Fixing test again?

---
 tests/datasets/api.fixture.php | 1 -
 1 file changed, 1 deletion(-)

diff --git a/tests/datasets/api.fixture.php b/tests/datasets/api.fixture.php
index 54401152a..fb11ae347 100644
--- a/tests/datasets/api.fixture.php
+++ b/tests/datasets/api.fixture.php
@@ -226,7 +226,6 @@ return [
 			'uid' => 42,
 			'link' => 'http://localhost/notification/1',
 			'iid' => 4,
-			'uri-id' => 4,
 			'seen' => 0,
 			'verb' => '',
 			'otype' => 'item',

From 6b1b052308ca1c9deecaa52223640d37a9ba2646 Mon Sep 17 00:00:00 2001
From: Michael <heluecht@pirati.ca>
Date: Mon, 4 May 2020 14:42:24 +0000
Subject: [PATCH 08/13] Updated database version in sql file

---
 database.sql | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/database.sql b/database.sql
index 320ef38e7..5faea07b9 100644
--- a/database.sql
+++ b/database.sql
@@ -1,6 +1,6 @@
 -- ------------------------------------------
 -- Friendica 2020.06-dev (Red Hot Poker)
--- DB_UPDATE_VERSION 1343
+-- DB_UPDATE_VERSION 1345
 -- ------------------------------------------
 
 

From 48f323431801d09e95f891b6722f482243c167fc Mon Sep 17 00:00:00 2001
From: Michael <heluecht@pirati.ca>
Date: Mon, 4 May 2020 14:50:22 +0000
Subject: [PATCH 09/13] Useless space and useless "null" check

---
 include/enotify.php | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/include/enotify.php b/include/enotify.php
index 81b491ade..ae2e2e7fe 100644
--- a/include/enotify.php
+++ b/include/enotify.php
@@ -470,10 +470,10 @@ function notification($params)
 			'photo'         => $params['source_photo'] ?? '',
 			'link'          => $itemlink ?? '',
 			'uid'           => $params['uid'] ?? 0,
-			'iid'           => $item_id ?? 0,
-			'uri-id'        => $uri_id ?? 0,
-			'parent'        => $parent_id ?? 0,
-			'parent-uri-id' => $parent_uri_id ?? 0,			
+			'iid'           => $item_id,
+			'uri-id'        => $uri_id,
+			'parent'        => $parent_id,
+			'parent-uri-id' => $parent_uri_id,
 			'type'          => $params['type'] ?? '',
 			'verb'          => $params['verb'] ?? '',
 			'otype'         => $params['otype'] ?? '',

From 340bc57952ca10a3c454576a7914f5f6ad41056d Mon Sep 17 00:00:00 2001
From: Hypolite Petovan <hypolite@mrpetovan.com>
Date: Mon, 4 May 2020 18:51:03 -0400
Subject: [PATCH 10/13] Ensure Tag::getByURIId parameter value in
 OStatus;;entryFooter

- Address https://github.com/friendica/friendica/issues/8473#issuecomment-623701081
- $item['uri-id'] isn't present for follow entry pseudo-items
---
 src/Protocol/OStatus.php | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/src/Protocol/OStatus.php b/src/Protocol/OStatus.php
index 8ab14c078..cff50f08e 100644
--- a/src/Protocol/OStatus.php
+++ b/src/Protocol/OStatus.php
@@ -2081,11 +2081,9 @@ class OStatus
 			XML::addElement($doc, $entry, "ostatus:conversation", $conversation_uri, $attributes);
 		}
 
-		$tags = Tag::getByURIId($item['uri-id']);
-		if (count($tags)) {
-			foreach ($tags as $tag) {
-				$mentioned[$tag['url']] = $tag['url'];
-			}
+		// uri-id isn't present for follow entry pseudo-items
+		foreach (Tag::getByURIId($item['uri-id'] ?? 0) as $tag) {
+			$mentioned[$tag['url']] = $tag['url'];
 		}
 
 		// Make sure that mentions are accepted (GNU Social has problems with mixing HTTP and HTTPS)

From 6d47324342782064df4716e5bd46b1489b0d6e08 Mon Sep 17 00:00:00 2001
From: Michael <heluecht@pirati.ca>
Date: Tue, 5 May 2020 05:22:14 +0000
Subject: [PATCH 11/13] Integrate perfect-scrollbar to make tests happy

---
 composer.json                                 |    1 -
 composer.lock                                 |   31 -
 library/perfect-scrollbar/LICENSE             |   22 +
 library/perfect-scrollbar/README.md           |    5 +
 library/perfect-scrollbar/bower.json          |   18 +
 .../css/perfect-scrollbar.css                 |  113 ++
 .../css/perfect-scrollbar.min.css             |    2 +
 .../js/perfect-scrollbar.jquery.js            | 1577 +++++++++++++++++
 .../js/perfect-scrollbar.jquery.min.js        |    2 +
 .../perfect-scrollbar/js/perfect-scrollbar.js | 1550 ++++++++++++++++
 .../js/perfect-scrollbar.min.js               |    2 +
 library/perfect-scrollbar/src/css/main.scss   |    3 +
 library/perfect-scrollbar/src/css/mixins.scss |  128 ++
 library/perfect-scrollbar/src/css/themes.scss |   25 +
 .../perfect-scrollbar/src/css/variables.scss  |   24 +
 .../src/js/adaptor/global.js                  |   14 +
 .../src/js/adaptor/jquery.js                  |   41 +
 library/perfect-scrollbar/src/js/lib/class.js |   42 +
 library/perfect-scrollbar/src/js/lib/dom.js   |   84 +
 .../src/js/lib/event-manager.js               |   71 +
 library/perfect-scrollbar/src/js/lib/guid.js  |   13 +
 .../perfect-scrollbar/src/js/lib/helper.js    |   83 +
 library/perfect-scrollbar/src/js/main.js      |   11 +
 .../src/js/plugin/default-setting.js          |   16 +
 .../src/js/plugin/destroy.js                  |   22 +
 .../src/js/plugin/handler/click-rail.js       |   39 +
 .../src/js/plugin/handler/drag-scrollbar.js   |  103 ++
 .../src/js/plugin/handler/keyboard.js         |  154 ++
 .../src/js/plugin/handler/mouse-wheel.js      |  141 ++
 .../src/js/plugin/handler/native-scroll.js    |   15 +
 .../src/js/plugin/handler/selection.js        |  115 ++
 .../src/js/plugin/handler/touch.js            |  179 ++
 .../src/js/plugin/initialize.js               |   37 +
 .../src/js/plugin/instances.js                |  107 ++
 .../src/js/plugin/update-geometry.js          |  126 ++
 .../src/js/plugin/update-scroll.js            |   97 +
 .../perfect-scrollbar/src/js/plugin/update.js |   37 +
 view/templates/head.tpl                       |    4 +-
 view/theme/frio/templates/head.tpl            |    4 +-
 39 files changed, 5022 insertions(+), 36 deletions(-)
 create mode 100644 library/perfect-scrollbar/LICENSE
 create mode 100644 library/perfect-scrollbar/README.md
 create mode 100644 library/perfect-scrollbar/bower.json
 create mode 100644 library/perfect-scrollbar/css/perfect-scrollbar.css
 create mode 100644 library/perfect-scrollbar/css/perfect-scrollbar.min.css
 create mode 100644 library/perfect-scrollbar/js/perfect-scrollbar.jquery.js
 create mode 100644 library/perfect-scrollbar/js/perfect-scrollbar.jquery.min.js
 create mode 100644 library/perfect-scrollbar/js/perfect-scrollbar.js
 create mode 100644 library/perfect-scrollbar/js/perfect-scrollbar.min.js
 create mode 100644 library/perfect-scrollbar/src/css/main.scss
 create mode 100644 library/perfect-scrollbar/src/css/mixins.scss
 create mode 100644 library/perfect-scrollbar/src/css/themes.scss
 create mode 100644 library/perfect-scrollbar/src/css/variables.scss
 create mode 100644 library/perfect-scrollbar/src/js/adaptor/global.js
 create mode 100644 library/perfect-scrollbar/src/js/adaptor/jquery.js
 create mode 100644 library/perfect-scrollbar/src/js/lib/class.js
 create mode 100644 library/perfect-scrollbar/src/js/lib/dom.js
 create mode 100644 library/perfect-scrollbar/src/js/lib/event-manager.js
 create mode 100644 library/perfect-scrollbar/src/js/lib/guid.js
 create mode 100644 library/perfect-scrollbar/src/js/lib/helper.js
 create mode 100644 library/perfect-scrollbar/src/js/main.js
 create mode 100644 library/perfect-scrollbar/src/js/plugin/default-setting.js
 create mode 100644 library/perfect-scrollbar/src/js/plugin/destroy.js
 create mode 100644 library/perfect-scrollbar/src/js/plugin/handler/click-rail.js
 create mode 100644 library/perfect-scrollbar/src/js/plugin/handler/drag-scrollbar.js
 create mode 100644 library/perfect-scrollbar/src/js/plugin/handler/keyboard.js
 create mode 100644 library/perfect-scrollbar/src/js/plugin/handler/mouse-wheel.js
 create mode 100644 library/perfect-scrollbar/src/js/plugin/handler/native-scroll.js
 create mode 100644 library/perfect-scrollbar/src/js/plugin/handler/selection.js
 create mode 100644 library/perfect-scrollbar/src/js/plugin/handler/touch.js
 create mode 100644 library/perfect-scrollbar/src/js/plugin/initialize.js
 create mode 100644 library/perfect-scrollbar/src/js/plugin/instances.js
 create mode 100644 library/perfect-scrollbar/src/js/plugin/update-geometry.js
 create mode 100644 library/perfect-scrollbar/src/js/plugin/update-scroll.js
 create mode 100644 library/perfect-scrollbar/src/js/plugin/update.js

diff --git a/composer.json b/composer.json
index 108ea8473..20cbe46a7 100644
--- a/composer.json
+++ b/composer.json
@@ -50,7 +50,6 @@
 		"bower-asset/base64": "^1.0",
 		"bower-asset/chart-js": "^2.8",
 		"bower-asset/dompurify": "^1.0",
-		"bower-asset/perfect-scrollbar": "^0.6",
 		"bower-asset/vue": "^2.6",
 		"npm-asset/es-jquery-sortable": "^0.9.13",
 		"npm-asset/jquery": "^2.0",
diff --git a/composer.lock b/composer.lock
index 8834f3f70..c04c2e9b1 100644
--- a/composer.lock
+++ b/composer.lock
@@ -237,37 +237,6 @@
             ],
             "time": "2019-02-28T15:21:34+00:00"
         },
-        {
-            "name": "bower-asset/perfect-scrollbar",
-            "version": "0.6.16",
-            "source": {
-                "type": "git",
-                "url": "https://github.com/utatti/perfect-scrollbar-bower.git",
-                "reference": "3049129e5dbb403295ce8507a461cdd0f200938c"
-            },
-            "dist": {
-                "type": "zip",
-                "url": "https://api.github.com/repos/utatti/perfect-scrollbar-bower/zipball/3049129e5dbb403295ce8507a461cdd0f200938c",
-                "reference": "3049129e5dbb403295ce8507a461cdd0f200938c",
-                "shasum": ""
-            },
-            "type": "bower-asset-library",
-            "extra": {
-                "bower-asset-main": [
-                    "css/perfect-scrollbar.css",
-                    "js/perfect-scrollbar.js"
-                ],
-                "bower-asset-ignore": [
-                    "**/.*",
-                    "bower_components"
-                ]
-            },
-            "license": [
-                "MIT"
-            ],
-            "description": "Minimalistic but perfect custom scrollbar plugin",
-            "time": "2017-01-10T01:04:09+00:00"
-        },
         {
             "name": "bower-asset/vue",
             "version": "v2.6.10",
diff --git a/library/perfect-scrollbar/LICENSE b/library/perfect-scrollbar/LICENSE
new file mode 100644
index 000000000..8df97031a
--- /dev/null
+++ b/library/perfect-scrollbar/LICENSE
@@ -0,0 +1,22 @@
+The MIT License (MIT)
+
+Copyright (c) 2016 Hyunje Alex Jun
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
diff --git a/library/perfect-scrollbar/README.md b/library/perfect-scrollbar/README.md
new file mode 100644
index 000000000..9b445dbf8
--- /dev/null
+++ b/library/perfect-scrollbar/README.md
@@ -0,0 +1,5 @@
+# Bower Package of perfect-scrollbar
+
+This is the [Bower](https://bower.io/) package of perfect-scrollbar.
+
+For details and usage please read more on [https://github.com/noraesae/perfect-scrollbar](https://github.com/noraesae/perfect-scrollbar).
diff --git a/library/perfect-scrollbar/bower.json b/library/perfect-scrollbar/bower.json
new file mode 100644
index 000000000..423477446
--- /dev/null
+++ b/library/perfect-scrollbar/bower.json
@@ -0,0 +1,18 @@
+{
+  "name": "perfect-scrollbar",
+  "version": "0.6.16",
+  "homepage": "http://noraesae.github.io/perfect-scrollbar/",
+  "authors": [
+    "Hyunje Jun <me@noraesae.net>"
+  ],
+  "description": "Minimalistic but perfect custom scrollbar plugin",
+  "main": [
+    "css/perfect-scrollbar.css",
+    "js/perfect-scrollbar.js"
+  ],
+  "license": "MIT",
+  "ignore": [
+    "**/.*",
+    "bower_components"
+  ]
+}
diff --git a/library/perfect-scrollbar/css/perfect-scrollbar.css b/library/perfect-scrollbar/css/perfect-scrollbar.css
new file mode 100644
index 000000000..6f03551ad
--- /dev/null
+++ b/library/perfect-scrollbar/css/perfect-scrollbar.css
@@ -0,0 +1,113 @@
+/* perfect-scrollbar v0.6.16 */
+.ps-container {
+  -ms-touch-action: auto;
+  touch-action: auto;
+  overflow: hidden !important;
+  -ms-overflow-style: none; }
+  @supports (-ms-overflow-style: none) {
+    .ps-container {
+      overflow: auto !important; } }
+  @media screen and (-ms-high-contrast: active), (-ms-high-contrast: none) {
+    .ps-container {
+      overflow: auto !important; } }
+  .ps-container.ps-active-x > .ps-scrollbar-x-rail,
+  .ps-container.ps-active-y > .ps-scrollbar-y-rail {
+    display: block;
+    background-color: transparent; }
+  .ps-container.ps-in-scrolling.ps-x > .ps-scrollbar-x-rail {
+    background-color: #eee;
+    opacity: 0.9; }
+    .ps-container.ps-in-scrolling.ps-x > .ps-scrollbar-x-rail > .ps-scrollbar-x {
+      background-color: #999;
+      height: 11px; }
+  .ps-container.ps-in-scrolling.ps-y > .ps-scrollbar-y-rail {
+    background-color: #eee;
+    opacity: 0.9; }
+    .ps-container.ps-in-scrolling.ps-y > .ps-scrollbar-y-rail > .ps-scrollbar-y {
+      background-color: #999;
+      width: 11px; }
+  .ps-container > .ps-scrollbar-x-rail {
+    display: none;
+    position: absolute;
+    /* please don't change 'position' */
+    opacity: 0;
+    -webkit-transition: background-color .2s linear, opacity .2s linear;
+    -o-transition: background-color .2s linear, opacity .2s linear;
+    -moz-transition: background-color .2s linear, opacity .2s linear;
+    transition: background-color .2s linear, opacity .2s linear;
+    bottom: 0px;
+    /* there must be 'bottom' for ps-scrollbar-x-rail */
+    height: 15px; }
+    .ps-container > .ps-scrollbar-x-rail > .ps-scrollbar-x {
+      position: absolute;
+      /* please don't change 'position' */
+      background-color: #aaa;
+      -webkit-border-radius: 6px;
+      -moz-border-radius: 6px;
+      border-radius: 6px;
+      -webkit-transition: background-color .2s linear, height .2s linear, width .2s ease-in-out, -webkit-border-radius .2s ease-in-out;
+      transition: background-color .2s linear, height .2s linear, width .2s ease-in-out, -webkit-border-radius .2s ease-in-out;
+      -o-transition: background-color .2s linear, height .2s linear, width .2s ease-in-out, border-radius .2s ease-in-out;
+      -moz-transition: background-color .2s linear, height .2s linear, width .2s ease-in-out, border-radius .2s ease-in-out, -moz-border-radius .2s ease-in-out;
+      transition: background-color .2s linear, height .2s linear, width .2s ease-in-out, border-radius .2s ease-in-out;
+      transition: background-color .2s linear, height .2s linear, width .2s ease-in-out, border-radius .2s ease-in-out, -webkit-border-radius .2s ease-in-out, -moz-border-radius .2s ease-in-out;
+      bottom: 2px;
+      /* there must be 'bottom' for ps-scrollbar-x */
+      height: 6px; }
+    .ps-container > .ps-scrollbar-x-rail:hover > .ps-scrollbar-x, .ps-container > .ps-scrollbar-x-rail:active > .ps-scrollbar-x {
+      height: 11px; }
+  .ps-container > .ps-scrollbar-y-rail {
+    display: none;
+    position: absolute;
+    /* please don't change 'position' */
+    opacity: 0;
+    -webkit-transition: background-color .2s linear, opacity .2s linear;
+    -o-transition: background-color .2s linear, opacity .2s linear;
+    -moz-transition: background-color .2s linear, opacity .2s linear;
+    transition: background-color .2s linear, opacity .2s linear;
+    right: 0;
+    /* there must be 'right' for ps-scrollbar-y-rail */
+    width: 15px; }
+    .ps-container > .ps-scrollbar-y-rail > .ps-scrollbar-y {
+      position: absolute;
+      /* please don't change 'position' */
+      background-color: #aaa;
+      -webkit-border-radius: 6px;
+      -moz-border-radius: 6px;
+      border-radius: 6px;
+      -webkit-transition: background-color .2s linear, height .2s linear, width .2s ease-in-out, -webkit-border-radius .2s ease-in-out;
+      transition: background-color .2s linear, height .2s linear, width .2s ease-in-out, -webkit-border-radius .2s ease-in-out;
+      -o-transition: background-color .2s linear, height .2s linear, width .2s ease-in-out, border-radius .2s ease-in-out;
+      -moz-transition: background-color .2s linear, height .2s linear, width .2s ease-in-out, border-radius .2s ease-in-out, -moz-border-radius .2s ease-in-out;
+      transition: background-color .2s linear, height .2s linear, width .2s ease-in-out, border-radius .2s ease-in-out;
+      transition: background-color .2s linear, height .2s linear, width .2s ease-in-out, border-radius .2s ease-in-out, -webkit-border-radius .2s ease-in-out, -moz-border-radius .2s ease-in-out;
+      right: 2px;
+      /* there must be 'right' for ps-scrollbar-y */
+      width: 6px; }
+    .ps-container > .ps-scrollbar-y-rail:hover > .ps-scrollbar-y, .ps-container > .ps-scrollbar-y-rail:active > .ps-scrollbar-y {
+      width: 11px; }
+  .ps-container:hover.ps-in-scrolling.ps-x > .ps-scrollbar-x-rail {
+    background-color: #eee;
+    opacity: 0.9; }
+    .ps-container:hover.ps-in-scrolling.ps-x > .ps-scrollbar-x-rail > .ps-scrollbar-x {
+      background-color: #999;
+      height: 11px; }
+  .ps-container:hover.ps-in-scrolling.ps-y > .ps-scrollbar-y-rail {
+    background-color: #eee;
+    opacity: 0.9; }
+    .ps-container:hover.ps-in-scrolling.ps-y > .ps-scrollbar-y-rail > .ps-scrollbar-y {
+      background-color: #999;
+      width: 11px; }
+  .ps-container:hover > .ps-scrollbar-x-rail,
+  .ps-container:hover > .ps-scrollbar-y-rail {
+    opacity: 0.6; }
+  .ps-container:hover > .ps-scrollbar-x-rail:hover {
+    background-color: #eee;
+    opacity: 0.9; }
+    .ps-container:hover > .ps-scrollbar-x-rail:hover > .ps-scrollbar-x {
+      background-color: #999; }
+  .ps-container:hover > .ps-scrollbar-y-rail:hover {
+    background-color: #eee;
+    opacity: 0.9; }
+    .ps-container:hover > .ps-scrollbar-y-rail:hover > .ps-scrollbar-y {
+      background-color: #999; }
diff --git a/library/perfect-scrollbar/css/perfect-scrollbar.min.css b/library/perfect-scrollbar/css/perfect-scrollbar.min.css
new file mode 100644
index 000000000..a0ad63ca5
--- /dev/null
+++ b/library/perfect-scrollbar/css/perfect-scrollbar.min.css
@@ -0,0 +1,2 @@
+/* perfect-scrollbar v0.6.16 */
+.ps-container{-ms-touch-action:auto;touch-action:auto;overflow:hidden !important;-ms-overflow-style:none}@supports (-ms-overflow-style: none){.ps-container{overflow:auto !important}}@media screen and (-ms-high-contrast: active), (-ms-high-contrast: none){.ps-container{overflow:auto !important}}.ps-container.ps-active-x>.ps-scrollbar-x-rail,.ps-container.ps-active-y>.ps-scrollbar-y-rail{display:block;background-color:transparent}.ps-container.ps-in-scrolling.ps-x>.ps-scrollbar-x-rail{background-color:#eee;opacity:.9}.ps-container.ps-in-scrolling.ps-x>.ps-scrollbar-x-rail>.ps-scrollbar-x{background-color:#999;height:11px}.ps-container.ps-in-scrolling.ps-y>.ps-scrollbar-y-rail{background-color:#eee;opacity:.9}.ps-container.ps-in-scrolling.ps-y>.ps-scrollbar-y-rail>.ps-scrollbar-y{background-color:#999;width:11px}.ps-container>.ps-scrollbar-x-rail{display:none;position:absolute;opacity:0;-webkit-transition:background-color .2s linear, opacity .2s linear;-o-transition:background-color .2s linear, opacity .2s linear;-moz-transition:background-color .2s linear, opacity .2s linear;transition:background-color .2s linear, opacity .2s linear;bottom:0px;height:15px}.ps-container>.ps-scrollbar-x-rail>.ps-scrollbar-x{position:absolute;background-color:#aaa;-webkit-border-radius:6px;-moz-border-radius:6px;border-radius:6px;-webkit-transition:background-color .2s linear, height .2s linear, width .2s ease-in-out, -webkit-border-radius .2s ease-in-out;transition:background-color .2s linear, height .2s linear, width .2s ease-in-out, -webkit-border-radius .2s ease-in-out;-o-transition:background-color .2s linear, height .2s linear, width .2s ease-in-out, border-radius .2s ease-in-out;-moz-transition:background-color .2s linear, height .2s linear, width .2s ease-in-out, border-radius .2s ease-in-out, -moz-border-radius .2s ease-in-out;transition:background-color .2s linear, height .2s linear, width .2s ease-in-out, border-radius .2s ease-in-out;transition:background-color .2s linear, height .2s linear, width .2s ease-in-out, border-radius .2s ease-in-out, -webkit-border-radius .2s ease-in-out, -moz-border-radius .2s ease-in-out;bottom:2px;height:6px}.ps-container>.ps-scrollbar-x-rail:hover>.ps-scrollbar-x,.ps-container>.ps-scrollbar-x-rail:active>.ps-scrollbar-x{height:11px}.ps-container>.ps-scrollbar-y-rail{display:none;position:absolute;opacity:0;-webkit-transition:background-color .2s linear, opacity .2s linear;-o-transition:background-color .2s linear, opacity .2s linear;-moz-transition:background-color .2s linear, opacity .2s linear;transition:background-color .2s linear, opacity .2s linear;right:0;width:15px}.ps-container>.ps-scrollbar-y-rail>.ps-scrollbar-y{position:absolute;background-color:#aaa;-webkit-border-radius:6px;-moz-border-radius:6px;border-radius:6px;-webkit-transition:background-color .2s linear, height .2s linear, width .2s ease-in-out, -webkit-border-radius .2s ease-in-out;transition:background-color .2s linear, height .2s linear, width .2s ease-in-out, -webkit-border-radius .2s ease-in-out;-o-transition:background-color .2s linear, height .2s linear, width .2s ease-in-out, border-radius .2s ease-in-out;-moz-transition:background-color .2s linear, height .2s linear, width .2s ease-in-out, border-radius .2s ease-in-out, -moz-border-radius .2s ease-in-out;transition:background-color .2s linear, height .2s linear, width .2s ease-in-out, border-radius .2s ease-in-out;transition:background-color .2s linear, height .2s linear, width .2s ease-in-out, border-radius .2s ease-in-out, -webkit-border-radius .2s ease-in-out, -moz-border-radius .2s ease-in-out;right:2px;width:6px}.ps-container>.ps-scrollbar-y-rail:hover>.ps-scrollbar-y,.ps-container>.ps-scrollbar-y-rail:active>.ps-scrollbar-y{width:11px}.ps-container:hover.ps-in-scrolling.ps-x>.ps-scrollbar-x-rail{background-color:#eee;opacity:.9}.ps-container:hover.ps-in-scrolling.ps-x>.ps-scrollbar-x-rail>.ps-scrollbar-x{background-color:#999;height:11px}.ps-container:hover.ps-in-scrolling.ps-y>.ps-scrollbar-y-rail{background-color:#eee;opacity:.9}.ps-container:hover.ps-in-scrolling.ps-y>.ps-scrollbar-y-rail>.ps-scrollbar-y{background-color:#999;width:11px}.ps-container:hover>.ps-scrollbar-x-rail,.ps-container:hover>.ps-scrollbar-y-rail{opacity:.6}.ps-container:hover>.ps-scrollbar-x-rail:hover{background-color:#eee;opacity:.9}.ps-container:hover>.ps-scrollbar-x-rail:hover>.ps-scrollbar-x{background-color:#999}.ps-container:hover>.ps-scrollbar-y-rail:hover{background-color:#eee;opacity:.9}.ps-container:hover>.ps-scrollbar-y-rail:hover>.ps-scrollbar-y{background-color:#999}
diff --git a/library/perfect-scrollbar/js/perfect-scrollbar.jquery.js b/library/perfect-scrollbar/js/perfect-scrollbar.jquery.js
new file mode 100644
index 000000000..5ae830f12
--- /dev/null
+++ b/library/perfect-scrollbar/js/perfect-scrollbar.jquery.js
@@ -0,0 +1,1577 @@
+/* perfect-scrollbar v0.6.16 */
+(function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
+'use strict';
+
+var ps = require('../main');
+var psInstances = require('../plugin/instances');
+
+function mountJQuery(jQuery) {
+  jQuery.fn.perfectScrollbar = function (settingOrCommand) {
+    return this.each(function () {
+      if (typeof settingOrCommand === 'object' ||
+          typeof settingOrCommand === 'undefined') {
+        // If it's an object or none, initialize.
+        var settings = settingOrCommand;
+
+        if (!psInstances.get(this)) {
+          ps.initialize(this, settings);
+        }
+      } else {
+        // Unless, it may be a command.
+        var command = settingOrCommand;
+
+        if (command === 'update') {
+          ps.update(this);
+        } else if (command === 'destroy') {
+          ps.destroy(this);
+        }
+      }
+    });
+  };
+}
+
+if (typeof define === 'function' && define.amd) {
+  // AMD. Register as an anonymous module.
+  define(['jquery'], mountJQuery);
+} else {
+  var jq = window.jQuery ? window.jQuery : window.$;
+  if (typeof jq !== 'undefined') {
+    mountJQuery(jq);
+  }
+}
+
+module.exports = mountJQuery;
+
+},{"../main":7,"../plugin/instances":18}],2:[function(require,module,exports){
+'use strict';
+
+function oldAdd(element, className) {
+  var classes = element.className.split(' ');
+  if (classes.indexOf(className) < 0) {
+    classes.push(className);
+  }
+  element.className = classes.join(' ');
+}
+
+function oldRemove(element, className) {
+  var classes = element.className.split(' ');
+  var idx = classes.indexOf(className);
+  if (idx >= 0) {
+    classes.splice(idx, 1);
+  }
+  element.className = classes.join(' ');
+}
+
+exports.add = function (element, className) {
+  if (element.classList) {
+    element.classList.add(className);
+  } else {
+    oldAdd(element, className);
+  }
+};
+
+exports.remove = function (element, className) {
+  if (element.classList) {
+    element.classList.remove(className);
+  } else {
+    oldRemove(element, className);
+  }
+};
+
+exports.list = function (element) {
+  if (element.classList) {
+    return Array.prototype.slice.apply(element.classList);
+  } else {
+    return element.className.split(' ');
+  }
+};
+
+},{}],3:[function(require,module,exports){
+'use strict';
+
+var DOM = {};
+
+DOM.e = function (tagName, className) {
+  var element = document.createElement(tagName);
+  element.className = className;
+  return element;
+};
+
+DOM.appendTo = function (child, parent) {
+  parent.appendChild(child);
+  return child;
+};
+
+function cssGet(element, styleName) {
+  return window.getComputedStyle(element)[styleName];
+}
+
+function cssSet(element, styleName, styleValue) {
+  if (typeof styleValue === 'number') {
+    styleValue = styleValue.toString() + 'px';
+  }
+  element.style[styleName] = styleValue;
+  return element;
+}
+
+function cssMultiSet(element, obj) {
+  for (var key in obj) {
+    var val = obj[key];
+    if (typeof val === 'number') {
+      val = val.toString() + 'px';
+    }
+    element.style[key] = val;
+  }
+  return element;
+}
+
+DOM.css = function (element, styleNameOrObject, styleValue) {
+  if (typeof styleNameOrObject === 'object') {
+    // multiple set with object
+    return cssMultiSet(element, styleNameOrObject);
+  } else {
+    if (typeof styleValue === 'undefined') {
+      return cssGet(element, styleNameOrObject);
+    } else {
+      return cssSet(element, styleNameOrObject, styleValue);
+    }
+  }
+};
+
+DOM.matches = function (element, query) {
+  if (typeof element.matches !== 'undefined') {
+    return element.matches(query);
+  } else {
+    if (typeof element.matchesSelector !== 'undefined') {
+      return element.matchesSelector(query);
+    } else if (typeof element.webkitMatchesSelector !== 'undefined') {
+      return element.webkitMatchesSelector(query);
+    } else if (typeof element.mozMatchesSelector !== 'undefined') {
+      return element.mozMatchesSelector(query);
+    } else if (typeof element.msMatchesSelector !== 'undefined') {
+      return element.msMatchesSelector(query);
+    }
+  }
+};
+
+DOM.remove = function (element) {
+  if (typeof element.remove !== 'undefined') {
+    element.remove();
+  } else {
+    if (element.parentNode) {
+      element.parentNode.removeChild(element);
+    }
+  }
+};
+
+DOM.queryChildren = function (element, selector) {
+  return Array.prototype.filter.call(element.childNodes, function (child) {
+    return DOM.matches(child, selector);
+  });
+};
+
+module.exports = DOM;
+
+},{}],4:[function(require,module,exports){
+'use strict';
+
+var EventElement = function (element) {
+  this.element = element;
+  this.events = {};
+};
+
+EventElement.prototype.bind = function (eventName, handler) {
+  if (typeof this.events[eventName] === 'undefined') {
+    this.events[eventName] = [];
+  }
+  this.events[eventName].push(handler);
+  this.element.addEventListener(eventName, handler, false);
+};
+
+EventElement.prototype.unbind = function (eventName, handler) {
+  var isHandlerProvided = (typeof handler !== 'undefined');
+  this.events[eventName] = this.events[eventName].filter(function (hdlr) {
+    if (isHandlerProvided && hdlr !== handler) {
+      return true;
+    }
+    this.element.removeEventListener(eventName, hdlr, false);
+    return false;
+  }, this);
+};
+
+EventElement.prototype.unbindAll = function () {
+  for (var name in this.events) {
+    this.unbind(name);
+  }
+};
+
+var EventManager = function () {
+  this.eventElements = [];
+};
+
+EventManager.prototype.eventElement = function (element) {
+  var ee = this.eventElements.filter(function (eventElement) {
+    return eventElement.element === element;
+  })[0];
+  if (typeof ee === 'undefined') {
+    ee = new EventElement(element);
+    this.eventElements.push(ee);
+  }
+  return ee;
+};
+
+EventManager.prototype.bind = function (element, eventName, handler) {
+  this.eventElement(element).bind(eventName, handler);
+};
+
+EventManager.prototype.unbind = function (element, eventName, handler) {
+  this.eventElement(element).unbind(eventName, handler);
+};
+
+EventManager.prototype.unbindAll = function () {
+  for (var i = 0; i < this.eventElements.length; i++) {
+    this.eventElements[i].unbindAll();
+  }
+};
+
+EventManager.prototype.once = function (element, eventName, handler) {
+  var ee = this.eventElement(element);
+  var onceHandler = function (e) {
+    ee.unbind(eventName, onceHandler);
+    handler(e);
+  };
+  ee.bind(eventName, onceHandler);
+};
+
+module.exports = EventManager;
+
+},{}],5:[function(require,module,exports){
+'use strict';
+
+module.exports = (function () {
+  function s4() {
+    return Math.floor((1 + Math.random()) * 0x10000)
+               .toString(16)
+               .substring(1);
+  }
+  return function () {
+    return s4() + s4() + '-' + s4() + '-' + s4() + '-' +
+           s4() + '-' + s4() + s4() + s4();
+  };
+})();
+
+},{}],6:[function(require,module,exports){
+'use strict';
+
+var cls = require('./class');
+var dom = require('./dom');
+
+var toInt = exports.toInt = function (x) {
+  return parseInt(x, 10) || 0;
+};
+
+var clone = exports.clone = function (obj) {
+  if (!obj) {
+    return null;
+  } else if (obj.constructor === Array) {
+    return obj.map(clone);
+  } else if (typeof obj === 'object') {
+    var result = {};
+    for (var key in obj) {
+      result[key] = clone(obj[key]);
+    }
+    return result;
+  } else {
+    return obj;
+  }
+};
+
+exports.extend = function (original, source) {
+  var result = clone(original);
+  for (var key in source) {
+    result[key] = clone(source[key]);
+  }
+  return result;
+};
+
+exports.isEditable = function (el) {
+  return dom.matches(el, "input,[contenteditable]") ||
+         dom.matches(el, "select,[contenteditable]") ||
+         dom.matches(el, "textarea,[contenteditable]") ||
+         dom.matches(el, "button,[contenteditable]");
+};
+
+exports.removePsClasses = function (element) {
+  var clsList = cls.list(element);
+  for (var i = 0; i < clsList.length; i++) {
+    var className = clsList[i];
+    if (className.indexOf('ps-') === 0) {
+      cls.remove(element, className);
+    }
+  }
+};
+
+exports.outerWidth = function (element) {
+  return toInt(dom.css(element, 'width')) +
+         toInt(dom.css(element, 'paddingLeft')) +
+         toInt(dom.css(element, 'paddingRight')) +
+         toInt(dom.css(element, 'borderLeftWidth')) +
+         toInt(dom.css(element, 'borderRightWidth'));
+};
+
+exports.startScrolling = function (element, axis) {
+  cls.add(element, 'ps-in-scrolling');
+  if (typeof axis !== 'undefined') {
+    cls.add(element, 'ps-' + axis);
+  } else {
+    cls.add(element, 'ps-x');
+    cls.add(element, 'ps-y');
+  }
+};
+
+exports.stopScrolling = function (element, axis) {
+  cls.remove(element, 'ps-in-scrolling');
+  if (typeof axis !== 'undefined') {
+    cls.remove(element, 'ps-' + axis);
+  } else {
+    cls.remove(element, 'ps-x');
+    cls.remove(element, 'ps-y');
+  }
+};
+
+exports.env = {
+  isWebKit: 'WebkitAppearance' in document.documentElement.style,
+  supportsTouch: (('ontouchstart' in window) || window.DocumentTouch && document instanceof window.DocumentTouch),
+  supportsIePointer: window.navigator.msMaxTouchPoints !== null
+};
+
+},{"./class":2,"./dom":3}],7:[function(require,module,exports){
+'use strict';
+
+var destroy = require('./plugin/destroy');
+var initialize = require('./plugin/initialize');
+var update = require('./plugin/update');
+
+module.exports = {
+  initialize: initialize,
+  update: update,
+  destroy: destroy
+};
+
+},{"./plugin/destroy":9,"./plugin/initialize":17,"./plugin/update":21}],8:[function(require,module,exports){
+'use strict';
+
+module.exports = {
+  handlers: ['click-rail', 'drag-scrollbar', 'keyboard', 'wheel', 'touch'],
+  maxScrollbarLength: null,
+  minScrollbarLength: null,
+  scrollXMarginOffset: 0,
+  scrollYMarginOffset: 0,
+  suppressScrollX: false,
+  suppressScrollY: false,
+  swipePropagation: true,
+  useBothWheelAxes: false,
+  wheelPropagation: false,
+  wheelSpeed: 1,
+  theme: 'default'
+};
+
+},{}],9:[function(require,module,exports){
+'use strict';
+
+var _ = require('../lib/helper');
+var dom = require('../lib/dom');
+var instances = require('./instances');
+
+module.exports = function (element) {
+  var i = instances.get(element);
+
+  if (!i) {
+    return;
+  }
+
+  i.event.unbindAll();
+  dom.remove(i.scrollbarX);
+  dom.remove(i.scrollbarY);
+  dom.remove(i.scrollbarXRail);
+  dom.remove(i.scrollbarYRail);
+  _.removePsClasses(element);
+
+  instances.remove(element);
+};
+
+},{"../lib/dom":3,"../lib/helper":6,"./instances":18}],10:[function(require,module,exports){
+'use strict';
+
+var instances = require('../instances');
+var updateGeometry = require('../update-geometry');
+var updateScroll = require('../update-scroll');
+
+function bindClickRailHandler(element, i) {
+  function pageOffset(el) {
+    return el.getBoundingClientRect();
+  }
+  var stopPropagation = function (e) { e.stopPropagation(); };
+
+  i.event.bind(i.scrollbarY, 'click', stopPropagation);
+  i.event.bind(i.scrollbarYRail, 'click', function (e) {
+    var positionTop = e.pageY - window.pageYOffset - pageOffset(i.scrollbarYRail).top;
+    var direction = positionTop > i.scrollbarYTop ? 1 : -1;
+
+    updateScroll(element, 'top', element.scrollTop + direction * i.containerHeight);
+    updateGeometry(element);
+
+    e.stopPropagation();
+  });
+
+  i.event.bind(i.scrollbarX, 'click', stopPropagation);
+  i.event.bind(i.scrollbarXRail, 'click', function (e) {
+    var positionLeft = e.pageX - window.pageXOffset - pageOffset(i.scrollbarXRail).left;
+    var direction = positionLeft > i.scrollbarXLeft ? 1 : -1;
+
+    updateScroll(element, 'left', element.scrollLeft + direction * i.containerWidth);
+    updateGeometry(element);
+
+    e.stopPropagation();
+  });
+}
+
+module.exports = function (element) {
+  var i = instances.get(element);
+  bindClickRailHandler(element, i);
+};
+
+},{"../instances":18,"../update-geometry":19,"../update-scroll":20}],11:[function(require,module,exports){
+'use strict';
+
+var _ = require('../../lib/helper');
+var dom = require('../../lib/dom');
+var instances = require('../instances');
+var updateGeometry = require('../update-geometry');
+var updateScroll = require('../update-scroll');
+
+function bindMouseScrollXHandler(element, i) {
+  var currentLeft = null;
+  var currentPageX = null;
+
+  function updateScrollLeft(deltaX) {
+    var newLeft = currentLeft + (deltaX * i.railXRatio);
+    var maxLeft = Math.max(0, i.scrollbarXRail.getBoundingClientRect().left) + (i.railXRatio * (i.railXWidth - i.scrollbarXWidth));
+
+    if (newLeft < 0) {
+      i.scrollbarXLeft = 0;
+    } else if (newLeft > maxLeft) {
+      i.scrollbarXLeft = maxLeft;
+    } else {
+      i.scrollbarXLeft = newLeft;
+    }
+
+    var scrollLeft = _.toInt(i.scrollbarXLeft * (i.contentWidth - i.containerWidth) / (i.containerWidth - (i.railXRatio * i.scrollbarXWidth))) - i.negativeScrollAdjustment;
+    updateScroll(element, 'left', scrollLeft);
+  }
+
+  var mouseMoveHandler = function (e) {
+    updateScrollLeft(e.pageX - currentPageX);
+    updateGeometry(element);
+    e.stopPropagation();
+    e.preventDefault();
+  };
+
+  var mouseUpHandler = function () {
+    _.stopScrolling(element, 'x');
+    i.event.unbind(i.ownerDocument, 'mousemove', mouseMoveHandler);
+  };
+
+  i.event.bind(i.scrollbarX, 'mousedown', function (e) {
+    currentPageX = e.pageX;
+    currentLeft = _.toInt(dom.css(i.scrollbarX, 'left')) * i.railXRatio;
+    _.startScrolling(element, 'x');
+
+    i.event.bind(i.ownerDocument, 'mousemove', mouseMoveHandler);
+    i.event.once(i.ownerDocument, 'mouseup', mouseUpHandler);
+
+    e.stopPropagation();
+    e.preventDefault();
+  });
+}
+
+function bindMouseScrollYHandler(element, i) {
+  var currentTop = null;
+  var currentPageY = null;
+
+  function updateScrollTop(deltaY) {
+    var newTop = currentTop + (deltaY * i.railYRatio);
+    var maxTop = Math.max(0, i.scrollbarYRail.getBoundingClientRect().top) + (i.railYRatio * (i.railYHeight - i.scrollbarYHeight));
+
+    if (newTop < 0) {
+      i.scrollbarYTop = 0;
+    } else if (newTop > maxTop) {
+      i.scrollbarYTop = maxTop;
+    } else {
+      i.scrollbarYTop = newTop;
+    }
+
+    var scrollTop = _.toInt(i.scrollbarYTop * (i.contentHeight - i.containerHeight) / (i.containerHeight - (i.railYRatio * i.scrollbarYHeight)));
+    updateScroll(element, 'top', scrollTop);
+  }
+
+  var mouseMoveHandler = function (e) {
+    updateScrollTop(e.pageY - currentPageY);
+    updateGeometry(element);
+    e.stopPropagation();
+    e.preventDefault();
+  };
+
+  var mouseUpHandler = function () {
+    _.stopScrolling(element, 'y');
+    i.event.unbind(i.ownerDocument, 'mousemove', mouseMoveHandler);
+  };
+
+  i.event.bind(i.scrollbarY, 'mousedown', function (e) {
+    currentPageY = e.pageY;
+    currentTop = _.toInt(dom.css(i.scrollbarY, 'top')) * i.railYRatio;
+    _.startScrolling(element, 'y');
+
+    i.event.bind(i.ownerDocument, 'mousemove', mouseMoveHandler);
+    i.event.once(i.ownerDocument, 'mouseup', mouseUpHandler);
+
+    e.stopPropagation();
+    e.preventDefault();
+  });
+}
+
+module.exports = function (element) {
+  var i = instances.get(element);
+  bindMouseScrollXHandler(element, i);
+  bindMouseScrollYHandler(element, i);
+};
+
+},{"../../lib/dom":3,"../../lib/helper":6,"../instances":18,"../update-geometry":19,"../update-scroll":20}],12:[function(require,module,exports){
+'use strict';
+
+var _ = require('../../lib/helper');
+var dom = require('../../lib/dom');
+var instances = require('../instances');
+var updateGeometry = require('../update-geometry');
+var updateScroll = require('../update-scroll');
+
+function bindKeyboardHandler(element, i) {
+  var hovered = false;
+  i.event.bind(element, 'mouseenter', function () {
+    hovered = true;
+  });
+  i.event.bind(element, 'mouseleave', function () {
+    hovered = false;
+  });
+
+  var shouldPrevent = false;
+  function shouldPreventDefault(deltaX, deltaY) {
+    var scrollTop = element.scrollTop;
+    if (deltaX === 0) {
+      if (!i.scrollbarYActive) {
+        return false;
+      }
+      if ((scrollTop === 0 && deltaY > 0) || (scrollTop >= i.contentHeight - i.containerHeight && deltaY < 0)) {
+        return !i.settings.wheelPropagation;
+      }
+    }
+
+    var scrollLeft = element.scrollLeft;
+    if (deltaY === 0) {
+      if (!i.scrollbarXActive) {
+        return false;
+      }
+      if ((scrollLeft === 0 && deltaX < 0) || (scrollLeft >= i.contentWidth - i.containerWidth && deltaX > 0)) {
+        return !i.settings.wheelPropagation;
+      }
+    }
+    return true;
+  }
+
+  i.event.bind(i.ownerDocument, 'keydown', function (e) {
+    if ((e.isDefaultPrevented && e.isDefaultPrevented()) || e.defaultPrevented) {
+      return;
+    }
+
+    var focused = dom.matches(i.scrollbarX, ':focus') ||
+                  dom.matches(i.scrollbarY, ':focus');
+
+    if (!hovered && !focused) {
+      return;
+    }
+
+    var activeElement = document.activeElement ? document.activeElement : i.ownerDocument.activeElement;
+    if (activeElement) {
+      if (activeElement.tagName === 'IFRAME') {
+        activeElement = activeElement.contentDocument.activeElement;
+      } else {
+        // go deeper if element is a webcomponent
+        while (activeElement.shadowRoot) {
+          activeElement = activeElement.shadowRoot.activeElement;
+        }
+      }
+      if (_.isEditable(activeElement)) {
+        return;
+      }
+    }
+
+    var deltaX = 0;
+    var deltaY = 0;
+
+    switch (e.which) {
+    case 37: // left
+      if (e.metaKey) {
+        deltaX = -i.contentWidth;
+      } else if (e.altKey) {
+        deltaX = -i.containerWidth;
+      } else {
+        deltaX = -30;
+      }
+      break;
+    case 38: // up
+      if (e.metaKey) {
+        deltaY = i.contentHeight;
+      } else if (e.altKey) {
+        deltaY = i.containerHeight;
+      } else {
+        deltaY = 30;
+      }
+      break;
+    case 39: // right
+      if (e.metaKey) {
+        deltaX = i.contentWidth;
+      } else if (e.altKey) {
+        deltaX = i.containerWidth;
+      } else {
+        deltaX = 30;
+      }
+      break;
+    case 40: // down
+      if (e.metaKey) {
+        deltaY = -i.contentHeight;
+      } else if (e.altKey) {
+        deltaY = -i.containerHeight;
+      } else {
+        deltaY = -30;
+      }
+      break;
+    case 33: // page up
+      deltaY = 90;
+      break;
+    case 32: // space bar
+      if (e.shiftKey) {
+        deltaY = 90;
+      } else {
+        deltaY = -90;
+      }
+      break;
+    case 34: // page down
+      deltaY = -90;
+      break;
+    case 35: // end
+      if (e.ctrlKey) {
+        deltaY = -i.contentHeight;
+      } else {
+        deltaY = -i.containerHeight;
+      }
+      break;
+    case 36: // home
+      if (e.ctrlKey) {
+        deltaY = element.scrollTop;
+      } else {
+        deltaY = i.containerHeight;
+      }
+      break;
+    default:
+      return;
+    }
+
+    updateScroll(element, 'top', element.scrollTop - deltaY);
+    updateScroll(element, 'left', element.scrollLeft + deltaX);
+    updateGeometry(element);
+
+    shouldPrevent = shouldPreventDefault(deltaX, deltaY);
+    if (shouldPrevent) {
+      e.preventDefault();
+    }
+  });
+}
+
+module.exports = function (element) {
+  var i = instances.get(element);
+  bindKeyboardHandler(element, i);
+};
+
+},{"../../lib/dom":3,"../../lib/helper":6,"../instances":18,"../update-geometry":19,"../update-scroll":20}],13:[function(require,module,exports){
+'use strict';
+
+var instances = require('../instances');
+var updateGeometry = require('../update-geometry');
+var updateScroll = require('../update-scroll');
+
+function bindMouseWheelHandler(element, i) {
+  var shouldPrevent = false;
+
+  function shouldPreventDefault(deltaX, deltaY) {
+    var scrollTop = element.scrollTop;
+    if (deltaX === 0) {
+      if (!i.scrollbarYActive) {
+        return false;
+      }
+      if ((scrollTop === 0 && deltaY > 0) || (scrollTop >= i.contentHeight - i.containerHeight && deltaY < 0)) {
+        return !i.settings.wheelPropagation;
+      }
+    }
+
+    var scrollLeft = element.scrollLeft;
+    if (deltaY === 0) {
+      if (!i.scrollbarXActive) {
+        return false;
+      }
+      if ((scrollLeft === 0 && deltaX < 0) || (scrollLeft >= i.contentWidth - i.containerWidth && deltaX > 0)) {
+        return !i.settings.wheelPropagation;
+      }
+    }
+    return true;
+  }
+
+  function getDeltaFromEvent(e) {
+    var deltaX = e.deltaX;
+    var deltaY = -1 * e.deltaY;
+
+    if (typeof deltaX === "undefined" || typeof deltaY === "undefined") {
+      // OS X Safari
+      deltaX = -1 * e.wheelDeltaX / 6;
+      deltaY = e.wheelDeltaY / 6;
+    }
+
+    if (e.deltaMode && e.deltaMode === 1) {
+      // Firefox in deltaMode 1: Line scrolling
+      deltaX *= 10;
+      deltaY *= 10;
+    }
+
+    if (deltaX !== deltaX && deltaY !== deltaY/* NaN checks */) {
+      // IE in some mouse drivers
+      deltaX = 0;
+      deltaY = e.wheelDelta;
+    }
+
+    if (e.shiftKey) {
+      // reverse axis with shift key
+      return [-deltaY, -deltaX];
+    }
+    return [deltaX, deltaY];
+  }
+
+  function shouldBeConsumedByChild(deltaX, deltaY) {
+    var child = element.querySelector('textarea:hover, select[multiple]:hover, .ps-child:hover');
+    if (child) {
+      if (!window.getComputedStyle(child).overflow.match(/(scroll|auto)/)) {
+        // if not scrollable
+        return false;
+      }
+
+      var maxScrollTop = child.scrollHeight - child.clientHeight;
+      if (maxScrollTop > 0) {
+        if (!(child.scrollTop === 0 && deltaY > 0) && !(child.scrollTop === maxScrollTop && deltaY < 0)) {
+          return true;
+        }
+      }
+      var maxScrollLeft = child.scrollLeft - child.clientWidth;
+      if (maxScrollLeft > 0) {
+        if (!(child.scrollLeft === 0 && deltaX < 0) && !(child.scrollLeft === maxScrollLeft && deltaX > 0)) {
+          return true;
+        }
+      }
+    }
+    return false;
+  }
+
+  function mousewheelHandler(e) {
+    var delta = getDeltaFromEvent(e);
+
+    var deltaX = delta[0];
+    var deltaY = delta[1];
+
+    if (shouldBeConsumedByChild(deltaX, deltaY)) {
+      return;
+    }
+
+    shouldPrevent = false;
+    if (!i.settings.useBothWheelAxes) {
+      // deltaX will only be used for horizontal scrolling and deltaY will
+      // only be used for vertical scrolling - this is the default
+      updateScroll(element, 'top', element.scrollTop - (deltaY * i.settings.wheelSpeed));
+      updateScroll(element, 'left', element.scrollLeft + (deltaX * i.settings.wheelSpeed));
+    } else if (i.scrollbarYActive && !i.scrollbarXActive) {
+      // only vertical scrollbar is active and useBothWheelAxes option is
+      // active, so let's scroll vertical bar using both mouse wheel axes
+      if (deltaY) {
+        updateScroll(element, 'top', element.scrollTop - (deltaY * i.settings.wheelSpeed));
+      } else {
+        updateScroll(element, 'top', element.scrollTop + (deltaX * i.settings.wheelSpeed));
+      }
+      shouldPrevent = true;
+    } else if (i.scrollbarXActive && !i.scrollbarYActive) {
+      // useBothWheelAxes and only horizontal bar is active, so use both
+      // wheel axes for horizontal bar
+      if (deltaX) {
+        updateScroll(element, 'left', element.scrollLeft + (deltaX * i.settings.wheelSpeed));
+      } else {
+        updateScroll(element, 'left', element.scrollLeft - (deltaY * i.settings.wheelSpeed));
+      }
+      shouldPrevent = true;
+    }
+
+    updateGeometry(element);
+
+    shouldPrevent = (shouldPrevent || shouldPreventDefault(deltaX, deltaY));
+    if (shouldPrevent) {
+      e.stopPropagation();
+      e.preventDefault();
+    }
+  }
+
+  if (typeof window.onwheel !== "undefined") {
+    i.event.bind(element, 'wheel', mousewheelHandler);
+  } else if (typeof window.onmousewheel !== "undefined") {
+    i.event.bind(element, 'mousewheel', mousewheelHandler);
+  }
+}
+
+module.exports = function (element) {
+  var i = instances.get(element);
+  bindMouseWheelHandler(element, i);
+};
+
+},{"../instances":18,"../update-geometry":19,"../update-scroll":20}],14:[function(require,module,exports){
+'use strict';
+
+var instances = require('../instances');
+var updateGeometry = require('../update-geometry');
+
+function bindNativeScrollHandler(element, i) {
+  i.event.bind(element, 'scroll', function () {
+    updateGeometry(element);
+  });
+}
+
+module.exports = function (element) {
+  var i = instances.get(element);
+  bindNativeScrollHandler(element, i);
+};
+
+},{"../instances":18,"../update-geometry":19}],15:[function(require,module,exports){
+'use strict';
+
+var _ = require('../../lib/helper');
+var instances = require('../instances');
+var updateGeometry = require('../update-geometry');
+var updateScroll = require('../update-scroll');
+
+function bindSelectionHandler(element, i) {
+  function getRangeNode() {
+    var selection = window.getSelection ? window.getSelection() :
+                    document.getSelection ? document.getSelection() : '';
+    if (selection.toString().length === 0) {
+      return null;
+    } else {
+      return selection.getRangeAt(0).commonAncestorContainer;
+    }
+  }
+
+  var scrollingLoop = null;
+  var scrollDiff = {top: 0, left: 0};
+  function startScrolling() {
+    if (!scrollingLoop) {
+      scrollingLoop = setInterval(function () {
+        if (!instances.get(element)) {
+          clearInterval(scrollingLoop);
+          return;
+        }
+
+        updateScroll(element, 'top', element.scrollTop + scrollDiff.top);
+        updateScroll(element, 'left', element.scrollLeft + scrollDiff.left);
+        updateGeometry(element);
+      }, 50); // every .1 sec
+    }
+  }
+  function stopScrolling() {
+    if (scrollingLoop) {
+      clearInterval(scrollingLoop);
+      scrollingLoop = null;
+    }
+    _.stopScrolling(element);
+  }
+
+  var isSelected = false;
+  i.event.bind(i.ownerDocument, 'selectionchange', function () {
+    if (element.contains(getRangeNode())) {
+      isSelected = true;
+    } else {
+      isSelected = false;
+      stopScrolling();
+    }
+  });
+  i.event.bind(window, 'mouseup', function () {
+    if (isSelected) {
+      isSelected = false;
+      stopScrolling();
+    }
+  });
+  i.event.bind(window, 'keyup', function () {
+    if (isSelected) {
+      isSelected = false;
+      stopScrolling();
+    }
+  });
+
+  i.event.bind(window, 'mousemove', function (e) {
+    if (isSelected) {
+      var mousePosition = {x: e.pageX, y: e.pageY};
+      var containerGeometry = {
+        left: element.offsetLeft,
+        right: element.offsetLeft + element.offsetWidth,
+        top: element.offsetTop,
+        bottom: element.offsetTop + element.offsetHeight
+      };
+
+      if (mousePosition.x < containerGeometry.left + 3) {
+        scrollDiff.left = -5;
+        _.startScrolling(element, 'x');
+      } else if (mousePosition.x > containerGeometry.right - 3) {
+        scrollDiff.left = 5;
+        _.startScrolling(element, 'x');
+      } else {
+        scrollDiff.left = 0;
+      }
+
+      if (mousePosition.y < containerGeometry.top + 3) {
+        if (containerGeometry.top + 3 - mousePosition.y < 5) {
+          scrollDiff.top = -5;
+        } else {
+          scrollDiff.top = -20;
+        }
+        _.startScrolling(element, 'y');
+      } else if (mousePosition.y > containerGeometry.bottom - 3) {
+        if (mousePosition.y - containerGeometry.bottom + 3 < 5) {
+          scrollDiff.top = 5;
+        } else {
+          scrollDiff.top = 20;
+        }
+        _.startScrolling(element, 'y');
+      } else {
+        scrollDiff.top = 0;
+      }
+
+      if (scrollDiff.top === 0 && scrollDiff.left === 0) {
+        stopScrolling();
+      } else {
+        startScrolling();
+      }
+    }
+  });
+}
+
+module.exports = function (element) {
+  var i = instances.get(element);
+  bindSelectionHandler(element, i);
+};
+
+},{"../../lib/helper":6,"../instances":18,"../update-geometry":19,"../update-scroll":20}],16:[function(require,module,exports){
+'use strict';
+
+var _ = require('../../lib/helper');
+var instances = require('../instances');
+var updateGeometry = require('../update-geometry');
+var updateScroll = require('../update-scroll');
+
+function bindTouchHandler(element, i, supportsTouch, supportsIePointer) {
+  function shouldPreventDefault(deltaX, deltaY) {
+    var scrollTop = element.scrollTop;
+    var scrollLeft = element.scrollLeft;
+    var magnitudeX = Math.abs(deltaX);
+    var magnitudeY = Math.abs(deltaY);
+
+    if (magnitudeY > magnitudeX) {
+      // user is perhaps trying to swipe up/down the page
+
+      if (((deltaY < 0) && (scrollTop === i.contentHeight - i.containerHeight)) ||
+          ((deltaY > 0) && (scrollTop === 0))) {
+        return !i.settings.swipePropagation;
+      }
+    } else if (magnitudeX > magnitudeY) {
+      // user is perhaps trying to swipe left/right across the page
+
+      if (((deltaX < 0) && (scrollLeft === i.contentWidth - i.containerWidth)) ||
+          ((deltaX > 0) && (scrollLeft === 0))) {
+        return !i.settings.swipePropagation;
+      }
+    }
+
+    return true;
+  }
+
+  function applyTouchMove(differenceX, differenceY) {
+    updateScroll(element, 'top', element.scrollTop - differenceY);
+    updateScroll(element, 'left', element.scrollLeft - differenceX);
+
+    updateGeometry(element);
+  }
+
+  var startOffset = {};
+  var startTime = 0;
+  var speed = {};
+  var easingLoop = null;
+  var inGlobalTouch = false;
+  var inLocalTouch = false;
+
+  function globalTouchStart() {
+    inGlobalTouch = true;
+  }
+  function globalTouchEnd() {
+    inGlobalTouch = false;
+  }
+
+  function getTouch(e) {
+    if (e.targetTouches) {
+      return e.targetTouches[0];
+    } else {
+      // Maybe IE pointer
+      return e;
+    }
+  }
+  function shouldHandle(e) {
+    if (e.targetTouches && e.targetTouches.length === 1) {
+      return true;
+    }
+    if (e.pointerType && e.pointerType !== 'mouse' && e.pointerType !== e.MSPOINTER_TYPE_MOUSE) {
+      return true;
+    }
+    return false;
+  }
+  function touchStart(e) {
+    if (shouldHandle(e)) {
+      inLocalTouch = true;
+
+      var touch = getTouch(e);
+
+      startOffset.pageX = touch.pageX;
+      startOffset.pageY = touch.pageY;
+
+      startTime = (new Date()).getTime();
+
+      if (easingLoop !== null) {
+        clearInterval(easingLoop);
+      }
+
+      e.stopPropagation();
+    }
+  }
+  function touchMove(e) {
+    if (!inLocalTouch && i.settings.swipePropagation) {
+      touchStart(e);
+    }
+    if (!inGlobalTouch && inLocalTouch && shouldHandle(e)) {
+      var touch = getTouch(e);
+
+      var currentOffset = {pageX: touch.pageX, pageY: touch.pageY};
+
+      var differenceX = currentOffset.pageX - startOffset.pageX;
+      var differenceY = currentOffset.pageY - startOffset.pageY;
+
+      applyTouchMove(differenceX, differenceY);
+      startOffset = currentOffset;
+
+      var currentTime = (new Date()).getTime();
+
+      var timeGap = currentTime - startTime;
+      if (timeGap > 0) {
+        speed.x = differenceX / timeGap;
+        speed.y = differenceY / timeGap;
+        startTime = currentTime;
+      }
+
+      if (shouldPreventDefault(differenceX, differenceY)) {
+        e.stopPropagation();
+        e.preventDefault();
+      }
+    }
+  }
+  function touchEnd() {
+    if (!inGlobalTouch && inLocalTouch) {
+      inLocalTouch = false;
+
+      clearInterval(easingLoop);
+      easingLoop = setInterval(function () {
+        if (!instances.get(element)) {
+          clearInterval(easingLoop);
+          return;
+        }
+
+        if (!speed.x && !speed.y) {
+          clearInterval(easingLoop);
+          return;
+        }
+
+        if (Math.abs(speed.x) < 0.01 && Math.abs(speed.y) < 0.01) {
+          clearInterval(easingLoop);
+          return;
+        }
+
+        applyTouchMove(speed.x * 30, speed.y * 30);
+
+        speed.x *= 0.8;
+        speed.y *= 0.8;
+      }, 10);
+    }
+  }
+
+  if (supportsTouch) {
+    i.event.bind(window, 'touchstart', globalTouchStart);
+    i.event.bind(window, 'touchend', globalTouchEnd);
+    i.event.bind(element, 'touchstart', touchStart);
+    i.event.bind(element, 'touchmove', touchMove);
+    i.event.bind(element, 'touchend', touchEnd);
+  } else if (supportsIePointer) {
+    if (window.PointerEvent) {
+      i.event.bind(window, 'pointerdown', globalTouchStart);
+      i.event.bind(window, 'pointerup', globalTouchEnd);
+      i.event.bind(element, 'pointerdown', touchStart);
+      i.event.bind(element, 'pointermove', touchMove);
+      i.event.bind(element, 'pointerup', touchEnd);
+    } else if (window.MSPointerEvent) {
+      i.event.bind(window, 'MSPointerDown', globalTouchStart);
+      i.event.bind(window, 'MSPointerUp', globalTouchEnd);
+      i.event.bind(element, 'MSPointerDown', touchStart);
+      i.event.bind(element, 'MSPointerMove', touchMove);
+      i.event.bind(element, 'MSPointerUp', touchEnd);
+    }
+  }
+}
+
+module.exports = function (element) {
+  if (!_.env.supportsTouch && !_.env.supportsIePointer) {
+    return;
+  }
+
+  var i = instances.get(element);
+  bindTouchHandler(element, i, _.env.supportsTouch, _.env.supportsIePointer);
+};
+
+},{"../../lib/helper":6,"../instances":18,"../update-geometry":19,"../update-scroll":20}],17:[function(require,module,exports){
+'use strict';
+
+var _ = require('../lib/helper');
+var cls = require('../lib/class');
+var instances = require('./instances');
+var updateGeometry = require('./update-geometry');
+
+// Handlers
+var handlers = {
+  'click-rail': require('./handler/click-rail'),
+  'drag-scrollbar': require('./handler/drag-scrollbar'),
+  'keyboard': require('./handler/keyboard'),
+  'wheel': require('./handler/mouse-wheel'),
+  'touch': require('./handler/touch'),
+  'selection': require('./handler/selection')
+};
+var nativeScrollHandler = require('./handler/native-scroll');
+
+module.exports = function (element, userSettings) {
+  userSettings = typeof userSettings === 'object' ? userSettings : {};
+
+  cls.add(element, 'ps-container');
+
+  // Create a plugin instance.
+  var i = instances.add(element);
+
+  i.settings = _.extend(i.settings, userSettings);
+  cls.add(element, 'ps-theme-' + i.settings.theme);
+
+  i.settings.handlers.forEach(function (handlerName) {
+    handlers[handlerName](element);
+  });
+
+  nativeScrollHandler(element);
+
+  updateGeometry(element);
+};
+
+},{"../lib/class":2,"../lib/helper":6,"./handler/click-rail":10,"./handler/drag-scrollbar":11,"./handler/keyboard":12,"./handler/mouse-wheel":13,"./handler/native-scroll":14,"./handler/selection":15,"./handler/touch":16,"./instances":18,"./update-geometry":19}],18:[function(require,module,exports){
+'use strict';
+
+var _ = require('../lib/helper');
+var cls = require('../lib/class');
+var defaultSettings = require('./default-setting');
+var dom = require('../lib/dom');
+var EventManager = require('../lib/event-manager');
+var guid = require('../lib/guid');
+
+var instances = {};
+
+function Instance(element) {
+  var i = this;
+
+  i.settings = _.clone(defaultSettings);
+  i.containerWidth = null;
+  i.containerHeight = null;
+  i.contentWidth = null;
+  i.contentHeight = null;
+
+  i.isRtl = dom.css(element, 'direction') === "rtl";
+  i.isNegativeScroll = (function () {
+    var originalScrollLeft = element.scrollLeft;
+    var result = null;
+    element.scrollLeft = -1;
+    result = element.scrollLeft < 0;
+    element.scrollLeft = originalScrollLeft;
+    return result;
+  })();
+  i.negativeScrollAdjustment = i.isNegativeScroll ? element.scrollWidth - element.clientWidth : 0;
+  i.event = new EventManager();
+  i.ownerDocument = element.ownerDocument || document;
+
+  function focus() {
+    cls.add(element, 'ps-focus');
+  }
+
+  function blur() {
+    cls.remove(element, 'ps-focus');
+  }
+
+  i.scrollbarXRail = dom.appendTo(dom.e('div', 'ps-scrollbar-x-rail'), element);
+  i.scrollbarX = dom.appendTo(dom.e('div', 'ps-scrollbar-x'), i.scrollbarXRail);
+  i.scrollbarX.setAttribute('tabindex', 0);
+  i.event.bind(i.scrollbarX, 'focus', focus);
+  i.event.bind(i.scrollbarX, 'blur', blur);
+  i.scrollbarXActive = null;
+  i.scrollbarXWidth = null;
+  i.scrollbarXLeft = null;
+  i.scrollbarXBottom = _.toInt(dom.css(i.scrollbarXRail, 'bottom'));
+  i.isScrollbarXUsingBottom = i.scrollbarXBottom === i.scrollbarXBottom; // !isNaN
+  i.scrollbarXTop = i.isScrollbarXUsingBottom ? null : _.toInt(dom.css(i.scrollbarXRail, 'top'));
+  i.railBorderXWidth = _.toInt(dom.css(i.scrollbarXRail, 'borderLeftWidth')) + _.toInt(dom.css(i.scrollbarXRail, 'borderRightWidth'));
+  // Set rail to display:block to calculate margins
+  dom.css(i.scrollbarXRail, 'display', 'block');
+  i.railXMarginWidth = _.toInt(dom.css(i.scrollbarXRail, 'marginLeft')) + _.toInt(dom.css(i.scrollbarXRail, 'marginRight'));
+  dom.css(i.scrollbarXRail, 'display', '');
+  i.railXWidth = null;
+  i.railXRatio = null;
+
+  i.scrollbarYRail = dom.appendTo(dom.e('div', 'ps-scrollbar-y-rail'), element);
+  i.scrollbarY = dom.appendTo(dom.e('div', 'ps-scrollbar-y'), i.scrollbarYRail);
+  i.scrollbarY.setAttribute('tabindex', 0);
+  i.event.bind(i.scrollbarY, 'focus', focus);
+  i.event.bind(i.scrollbarY, 'blur', blur);
+  i.scrollbarYActive = null;
+  i.scrollbarYHeight = null;
+  i.scrollbarYTop = null;
+  i.scrollbarYRight = _.toInt(dom.css(i.scrollbarYRail, 'right'));
+  i.isScrollbarYUsingRight = i.scrollbarYRight === i.scrollbarYRight; // !isNaN
+  i.scrollbarYLeft = i.isScrollbarYUsingRight ? null : _.toInt(dom.css(i.scrollbarYRail, 'left'));
+  i.scrollbarYOuterWidth = i.isRtl ? _.outerWidth(i.scrollbarY) : null;
+  i.railBorderYWidth = _.toInt(dom.css(i.scrollbarYRail, 'borderTopWidth')) + _.toInt(dom.css(i.scrollbarYRail, 'borderBottomWidth'));
+  dom.css(i.scrollbarYRail, 'display', 'block');
+  i.railYMarginHeight = _.toInt(dom.css(i.scrollbarYRail, 'marginTop')) + _.toInt(dom.css(i.scrollbarYRail, 'marginBottom'));
+  dom.css(i.scrollbarYRail, 'display', '');
+  i.railYHeight = null;
+  i.railYRatio = null;
+}
+
+function getId(element) {
+  return element.getAttribute('data-ps-id');
+}
+
+function setId(element, id) {
+  element.setAttribute('data-ps-id', id);
+}
+
+function removeId(element) {
+  element.removeAttribute('data-ps-id');
+}
+
+exports.add = function (element) {
+  var newId = guid();
+  setId(element, newId);
+  instances[newId] = new Instance(element);
+  return instances[newId];
+};
+
+exports.remove = function (element) {
+  delete instances[getId(element)];
+  removeId(element);
+};
+
+exports.get = function (element) {
+  return instances[getId(element)];
+};
+
+},{"../lib/class":2,"../lib/dom":3,"../lib/event-manager":4,"../lib/guid":5,"../lib/helper":6,"./default-setting":8}],19:[function(require,module,exports){
+'use strict';
+
+var _ = require('../lib/helper');
+var cls = require('../lib/class');
+var dom = require('../lib/dom');
+var instances = require('./instances');
+var updateScroll = require('./update-scroll');
+
+function getThumbSize(i, thumbSize) {
+  if (i.settings.minScrollbarLength) {
+    thumbSize = Math.max(thumbSize, i.settings.minScrollbarLength);
+  }
+  if (i.settings.maxScrollbarLength) {
+    thumbSize = Math.min(thumbSize, i.settings.maxScrollbarLength);
+  }
+  return thumbSize;
+}
+
+function updateCss(element, i) {
+  var xRailOffset = {width: i.railXWidth};
+  if (i.isRtl) {
+    xRailOffset.left = i.negativeScrollAdjustment + element.scrollLeft + i.containerWidth - i.contentWidth;
+  } else {
+    xRailOffset.left = element.scrollLeft;
+  }
+  if (i.isScrollbarXUsingBottom) {
+    xRailOffset.bottom = i.scrollbarXBottom - element.scrollTop;
+  } else {
+    xRailOffset.top = i.scrollbarXTop + element.scrollTop;
+  }
+  dom.css(i.scrollbarXRail, xRailOffset);
+
+  var yRailOffset = {top: element.scrollTop, height: i.railYHeight};
+  if (i.isScrollbarYUsingRight) {
+    if (i.isRtl) {
+      yRailOffset.right = i.contentWidth - (i.negativeScrollAdjustment + element.scrollLeft) - i.scrollbarYRight - i.scrollbarYOuterWidth;
+    } else {
+      yRailOffset.right = i.scrollbarYRight - element.scrollLeft;
+    }
+  } else {
+    if (i.isRtl) {
+      yRailOffset.left = i.negativeScrollAdjustment + element.scrollLeft + i.containerWidth * 2 - i.contentWidth - i.scrollbarYLeft - i.scrollbarYOuterWidth;
+    } else {
+      yRailOffset.left = i.scrollbarYLeft + element.scrollLeft;
+    }
+  }
+  dom.css(i.scrollbarYRail, yRailOffset);
+
+  dom.css(i.scrollbarX, {left: i.scrollbarXLeft, width: i.scrollbarXWidth - i.railBorderXWidth});
+  dom.css(i.scrollbarY, {top: i.scrollbarYTop, height: i.scrollbarYHeight - i.railBorderYWidth});
+}
+
+module.exports = function (element) {
+  var i = instances.get(element);
+
+  i.containerWidth = element.clientWidth;
+  i.containerHeight = element.clientHeight;
+  i.contentWidth = element.scrollWidth;
+  i.contentHeight = element.scrollHeight;
+
+  var existingRails;
+  if (!element.contains(i.scrollbarXRail)) {
+    existingRails = dom.queryChildren(element, '.ps-scrollbar-x-rail');
+    if (existingRails.length > 0) {
+      existingRails.forEach(function (rail) {
+        dom.remove(rail);
+      });
+    }
+    dom.appendTo(i.scrollbarXRail, element);
+  }
+  if (!element.contains(i.scrollbarYRail)) {
+    existingRails = dom.queryChildren(element, '.ps-scrollbar-y-rail');
+    if (existingRails.length > 0) {
+      existingRails.forEach(function (rail) {
+        dom.remove(rail);
+      });
+    }
+    dom.appendTo(i.scrollbarYRail, element);
+  }
+
+  if (!i.settings.suppressScrollX && i.containerWidth + i.settings.scrollXMarginOffset < i.contentWidth) {
+    i.scrollbarXActive = true;
+    i.railXWidth = i.containerWidth - i.railXMarginWidth;
+    i.railXRatio = i.containerWidth / i.railXWidth;
+    i.scrollbarXWidth = getThumbSize(i, _.toInt(i.railXWidth * i.containerWidth / i.contentWidth));
+    i.scrollbarXLeft = _.toInt((i.negativeScrollAdjustment + element.scrollLeft) * (i.railXWidth - i.scrollbarXWidth) / (i.contentWidth - i.containerWidth));
+  } else {
+    i.scrollbarXActive = false;
+  }
+
+  if (!i.settings.suppressScrollY && i.containerHeight + i.settings.scrollYMarginOffset < i.contentHeight) {
+    i.scrollbarYActive = true;
+    i.railYHeight = i.containerHeight - i.railYMarginHeight;
+    i.railYRatio = i.containerHeight / i.railYHeight;
+    i.scrollbarYHeight = getThumbSize(i, _.toInt(i.railYHeight * i.containerHeight / i.contentHeight));
+    i.scrollbarYTop = _.toInt(element.scrollTop * (i.railYHeight - i.scrollbarYHeight) / (i.contentHeight - i.containerHeight));
+  } else {
+    i.scrollbarYActive = false;
+  }
+
+  if (i.scrollbarXLeft >= i.railXWidth - i.scrollbarXWidth) {
+    i.scrollbarXLeft = i.railXWidth - i.scrollbarXWidth;
+  }
+  if (i.scrollbarYTop >= i.railYHeight - i.scrollbarYHeight) {
+    i.scrollbarYTop = i.railYHeight - i.scrollbarYHeight;
+  }
+
+  updateCss(element, i);
+
+  if (i.scrollbarXActive) {
+    cls.add(element, 'ps-active-x');
+  } else {
+    cls.remove(element, 'ps-active-x');
+    i.scrollbarXWidth = 0;
+    i.scrollbarXLeft = 0;
+    updateScroll(element, 'left', 0);
+  }
+  if (i.scrollbarYActive) {
+    cls.add(element, 'ps-active-y');
+  } else {
+    cls.remove(element, 'ps-active-y');
+    i.scrollbarYHeight = 0;
+    i.scrollbarYTop = 0;
+    updateScroll(element, 'top', 0);
+  }
+};
+
+},{"../lib/class":2,"../lib/dom":3,"../lib/helper":6,"./instances":18,"./update-scroll":20}],20:[function(require,module,exports){
+'use strict';
+
+var instances = require('./instances');
+
+var lastTop;
+var lastLeft;
+
+var createDOMEvent = function (name) {
+  var event = document.createEvent("Event");
+  event.initEvent(name, true, true);
+  return event;
+};
+
+module.exports = function (element, axis, value) {
+  if (typeof element === 'undefined') {
+    throw 'You must provide an element to the update-scroll function';
+  }
+
+  if (typeof axis === 'undefined') {
+    throw 'You must provide an axis to the update-scroll function';
+  }
+
+  if (typeof value === 'undefined') {
+    throw 'You must provide a value to the update-scroll function';
+  }
+
+  if (axis === 'top' && value <= 0) {
+    element.scrollTop = value = 0; // don't allow negative scroll
+    element.dispatchEvent(createDOMEvent('ps-y-reach-start'));
+  }
+
+  if (axis === 'left' && value <= 0) {
+    element.scrollLeft = value = 0; // don't allow negative scroll
+    element.dispatchEvent(createDOMEvent('ps-x-reach-start'));
+  }
+
+  var i = instances.get(element);
+
+  if (axis === 'top' && value >= i.contentHeight - i.containerHeight) {
+    // don't allow scroll past container
+    value = i.contentHeight - i.containerHeight;
+    if (value - element.scrollTop <= 1) {
+      // mitigates rounding errors on non-subpixel scroll values
+      value = element.scrollTop;
+    } else {
+      element.scrollTop = value;
+    }
+    element.dispatchEvent(createDOMEvent('ps-y-reach-end'));
+  }
+
+  if (axis === 'left' && value >= i.contentWidth - i.containerWidth) {
+    // don't allow scroll past container
+    value = i.contentWidth - i.containerWidth;
+    if (value - element.scrollLeft <= 1) {
+      // mitigates rounding errors on non-subpixel scroll values
+      value = element.scrollLeft;
+    } else {
+      element.scrollLeft = value;
+    }
+    element.dispatchEvent(createDOMEvent('ps-x-reach-end'));
+  }
+
+  if (!lastTop) {
+    lastTop = element.scrollTop;
+  }
+
+  if (!lastLeft) {
+    lastLeft = element.scrollLeft;
+  }
+
+  if (axis === 'top' && value < lastTop) {
+    element.dispatchEvent(createDOMEvent('ps-scroll-up'));
+  }
+
+  if (axis === 'top' && value > lastTop) {
+    element.dispatchEvent(createDOMEvent('ps-scroll-down'));
+  }
+
+  if (axis === 'left' && value < lastLeft) {
+    element.dispatchEvent(createDOMEvent('ps-scroll-left'));
+  }
+
+  if (axis === 'left' && value > lastLeft) {
+    element.dispatchEvent(createDOMEvent('ps-scroll-right'));
+  }
+
+  if (axis === 'top') {
+    element.scrollTop = lastTop = value;
+    element.dispatchEvent(createDOMEvent('ps-scroll-y'));
+  }
+
+  if (axis === 'left') {
+    element.scrollLeft = lastLeft = value;
+    element.dispatchEvent(createDOMEvent('ps-scroll-x'));
+  }
+
+};
+
+},{"./instances":18}],21:[function(require,module,exports){
+'use strict';
+
+var _ = require('../lib/helper');
+var dom = require('../lib/dom');
+var instances = require('./instances');
+var updateGeometry = require('./update-geometry');
+var updateScroll = require('./update-scroll');
+
+module.exports = function (element) {
+  var i = instances.get(element);
+
+  if (!i) {
+    return;
+  }
+
+  // Recalcuate negative scrollLeft adjustment
+  i.negativeScrollAdjustment = i.isNegativeScroll ? element.scrollWidth - element.clientWidth : 0;
+
+  // Recalculate rail margins
+  dom.css(i.scrollbarXRail, 'display', 'block');
+  dom.css(i.scrollbarYRail, 'display', 'block');
+  i.railXMarginWidth = _.toInt(dom.css(i.scrollbarXRail, 'marginLeft')) + _.toInt(dom.css(i.scrollbarXRail, 'marginRight'));
+  i.railYMarginHeight = _.toInt(dom.css(i.scrollbarYRail, 'marginTop')) + _.toInt(dom.css(i.scrollbarYRail, 'marginBottom'));
+
+  // Hide scrollbars not to affect scrollWidth and scrollHeight
+  dom.css(i.scrollbarXRail, 'display', 'none');
+  dom.css(i.scrollbarYRail, 'display', 'none');
+
+  updateGeometry(element);
+
+  // Update top/left scroll to trigger events
+  updateScroll(element, 'top', element.scrollTop);
+  updateScroll(element, 'left', element.scrollLeft);
+
+  dom.css(i.scrollbarXRail, 'display', '');
+  dom.css(i.scrollbarYRail, 'display', '');
+};
+
+},{"../lib/dom":3,"../lib/helper":6,"./instances":18,"./update-geometry":19,"./update-scroll":20}]},{},[1]);
diff --git a/library/perfect-scrollbar/js/perfect-scrollbar.jquery.min.js b/library/perfect-scrollbar/js/perfect-scrollbar.jquery.min.js
new file mode 100644
index 000000000..01bc76888
--- /dev/null
+++ b/library/perfect-scrollbar/js/perfect-scrollbar.jquery.min.js
@@ -0,0 +1,2 @@
+/* perfect-scrollbar v0.6.16 */
+!function t(e,n,r){function o(i,s){if(!n[i]){if(!e[i]){var a="function"==typeof require&&require;if(!s&&a)return a(i,!0);if(l)return l(i,!0);var c=new Error("Cannot find module '"+i+"'");throw c.code="MODULE_NOT_FOUND",c}var u=n[i]={exports:{}};e[i][0].call(u.exports,function(t){var n=e[i][1][t];return o(n?n:t)},u,u.exports,t,e,n,r)}return n[i].exports}for(var l="function"==typeof require&&require,i=0;i<r.length;i++)o(r[i]);return o}({1:[function(t,e,n){"use strict";function r(t){t.fn.perfectScrollbar=function(t){return this.each(function(){if("object"==typeof t||"undefined"==typeof t){var e=t;l.get(this)||o.initialize(this,e)}else{var n=t;"update"===n?o.update(this):"destroy"===n&&o.destroy(this)}})}}var o=t("../main"),l=t("../plugin/instances");if("function"==typeof define&&define.amd)define(["jquery"],r);else{var i=window.jQuery?window.jQuery:window.$;"undefined"!=typeof i&&r(i)}e.exports=r},{"../main":7,"../plugin/instances":18}],2:[function(t,e,n){"use strict";function r(t,e){var 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n=l.add(t);n.settings=r.extend(n.settings,e),o.add(t,"ps-theme-"+n.settings.theme),n.settings.handlers.forEach(function(e){s[e](t)}),a(t),i(t)}},{"../lib/class":2,"../lib/helper":6,"./handler/click-rail":10,"./handler/drag-scrollbar":11,"./handler/keyboard":12,"./handler/mouse-wheel":13,"./handler/native-scroll":14,"./handler/selection":15,"./handler/touch":16,"./instances":18,"./update-geometry":19}],18:[function(t,e,n){"use strict";function r(t){function e(){a.add(t,"ps-focus")}function n(){a.remove(t,"ps-focus")}var r=this;r.settings=s.clone(c),r.containerWidth=null,r.containerHeight=null,r.contentWidth=null,r.contentHeight=null,r.isRtl="rtl"===u.css(t,"direction"),r.isNegativeScroll=function(){var e=t.scrollLeft,n=null;return t.scrollLeft=-1,n=t.scrollLeft<0,t.scrollLeft=e,n}(),r.negativeScrollAdjustment=r.isNegativeScroll?t.scrollWidth-t.clientWidth:0,r.event=new d,r.ownerDocument=t.ownerDocument||document,r.scrollbarXRail=u.appendTo(u.e("div","ps-scrollbar-x-rail"),t),r.scrollbarX=u.appendTo(u.e("div","ps-scrollbar-x"),r.scrollbarXRail),r.scrollbarX.setAttribute("tabindex",0),r.event.bind(r.scrollbarX,"focus",e),r.event.bind(r.scrollbarX,"blur",n),r.scrollbarXActive=null,r.scrollbarXWidth=null,r.scrollbarXLeft=null,r.scrollbarXBottom=s.toInt(u.css(r.scrollbarXRail,"bottom")),r.isScrollbarXUsingBottom=r.scrollbarXBottom===r.scrollbarXBottom,r.scrollbarXTop=r.isScrollbarXUsingBottom?null:s.toInt(u.css(r.scrollbarXRail,"top")),r.railBorderXWidth=s.toInt(u.css(r.scrollbarXRail,"borderLeftWidth"))+s.toInt(u.css(r.scrollbarXRail,"borderRightWidth")),u.css(r.scrollbarXRail,"display","block"),r.railXMarginWidth=s.toInt(u.css(r.scrollbarXRail,"marginLeft"))+s.toInt(u.css(r.scrollbarXRail,"marginRight")),u.css(r.scrollbarXRail,"display",""),r.railXWidth=null,r.railXRatio=null,r.scrollbarYRail=u.appendTo(u.e("div","ps-scrollbar-y-rail"),t),r.scrollbarY=u.appendTo(u.e("div","ps-scrollbar-y"),r.scrollbarYRail),r.scrollbarY.setAttribute("tabindex",0),r.event.bind(r.scrollbarY,"focus",e),r.event.bind(r.scrollbarY,"blur",n),r.scrollbarYActive=null,r.scrollbarYHeight=null,r.scrollbarYTop=null,r.scrollbarYRight=s.toInt(u.css(r.scrollbarYRail,"right")),r.isScrollbarYUsingRight=r.scrollbarYRight===r.scrollbarYRight,r.scrollbarYLeft=r.isScrollbarYUsingRight?null:s.toInt(u.css(r.scrollbarYRail,"left")),r.scrollbarYOuterWidth=r.isRtl?s.outerWidth(r.scrollbarY):null,r.railBorderYWidth=s.toInt(u.css(r.scrollbarYRail,"borderTopWidth"))+s.toInt(u.css(r.scrollbarYRail,"borderBottomWidth")),u.css(r.scrollbarYRail,"display","block"),r.railYMarginHeight=s.toInt(u.css(r.scrollbarYRail,"marginTop"))+s.toInt(u.css(r.scrollbarYRail,"marginBottom")),u.css(r.scrollbarYRail,"display",""),r.railYHeight=null,r.railYRatio=null}function o(t){return t.getAttribute("data-ps-id")}function l(t,e){t.setAttribute("data-ps-id",e)}function i(t){t.removeAttribute("data-ps-id")}var s=t("../lib/helper"),a=t("../lib/class"),c=t("./default-setting"),u=t("../lib/dom"),d=t("../lib/event-manager"),p=t("../lib/guid"),f={};n.add=function(t){var e=p();return l(t,e),f[e]=new r(t),f[e]},n.remove=function(t){delete f[o(t)],i(t)},n.get=function(t){return f[o(t)]}},{"../lib/class":2,"../lib/dom":3,"../lib/event-manager":4,"../lib/guid":5,"../lib/helper":6,"./default-setting":8}],19:[function(t,e,n){"use strict";function r(t,e){return t.settings.minScrollbarLength&&(e=Math.max(e,t.settings.minScrollbarLength)),t.settings.maxScrollbarLength&&(e=Math.min(e,t.settings.maxScrollbarLength)),e}function o(t,e){var n={width:e.railXWidth};e.isRtl?n.left=e.negativeScrollAdjustment+t.scrollLeft+e.containerWidth-e.contentWidth:n.left=t.scrollLeft,e.isScrollbarXUsingBottom?n.bottom=e.scrollbarXBottom-t.scrollTop:n.top=e.scrollbarXTop+t.scrollTop,s.css(e.scrollbarXRail,n);var r={top:t.scrollTop,height:e.railYHeight};e.isScrollbarYUsingRight?e.isRtl?r.right=e.contentWidth-(e.negativeScrollAdjustment+t.scrollLeft)-e.scrollbarYRight-e.scrollbarYOuterWidth:r.right=e.scrollbarYRight-t.scrollLeft:e.isRtl?r.left=e.negativeScrollAdjustment+t.scrollLeft+2*e.containerWidth-e.contentWidth-e.scrollbarYLeft-e.scrollbarYOuterWidth:r.left=e.scrollbarYLeft+t.scrollLeft,s.css(e.scrollbarYRail,r),s.css(e.scrollbarX,{left:e.scrollbarXLeft,width:e.scrollbarXWidth-e.railBorderXWidth}),s.css(e.scrollbarY,{top:e.scrollbarYTop,height:e.scrollbarYHeight-e.railBorderYWidth})}var l=t("../lib/helper"),i=t("../lib/class"),s=t("../lib/dom"),a=t("./instances"),c=t("./update-scroll");e.exports=function(t){var e=a.get(t);e.containerWidth=t.clientWidth,e.containerHeight=t.clientHeight,e.contentWidth=t.scrollWidth,e.contentHeight=t.scrollHeight;var n;t.contains(e.scrollbarXRail)||(n=s.queryChildren(t,".ps-scrollbar-x-rail"),n.length>0&&n.forEach(function(t){s.remove(t)}),s.appendTo(e.scrollbarXRail,t)),t.contains(e.scrollbarYRail)||(n=s.queryChildren(t,".ps-scrollbar-y-rail"),n.length>0&&n.forEach(function(t){s.remove(t)}),s.appendTo(e.scrollbarYRail,t)),!e.settings.suppressScrollX&&e.containerWidth+e.settings.scrollXMarginOffset<e.contentWidth?(e.scrollbarXActive=!0,e.railXWidth=e.containerWidth-e.railXMarginWidth,e.railXRatio=e.containerWidth/e.railXWidth,e.scrollbarXWidth=r(e,l.toInt(e.railXWidth*e.containerWidth/e.contentWidth)),e.scrollbarXLeft=l.toInt((e.negativeScrollAdjustment+t.scrollLeft)*(e.railXWidth-e.scrollbarXWidth)/(e.contentWidth-e.containerWidth))):e.scrollbarXActive=!1,!e.settings.suppressScrollY&&e.containerHeight+e.settings.scrollYMarginOffset<e.contentHeight?(e.scrollbarYActive=!0,e.railYHeight=e.containerHeight-e.railYMarginHeight,e.railYRatio=e.containerHeight/e.railYHeight,e.scrollbarYHeight=r(e,l.toInt(e.railYHeight*e.containerHeight/e.contentHeight)),e.scrollbarYTop=l.toInt(t.scrollTop*(e.railYHeight-e.scrollbarYHeight)/(e.contentHeight-e.containerHeight))):e.scrollbarYActive=!1,e.scrollbarXLeft>=e.railXWidth-e.scrollbarXWidth&&(e.scrollbarXLeft=e.railXWidth-e.scrollbarXWidth),e.scrollbarYTop>=e.railYHeight-e.scrollbarYHeight&&(e.scrollbarYTop=e.railYHeight-e.scrollbarYHeight),o(t,e),e.scrollbarXActive?i.add(t,"ps-active-x"):(i.remove(t,"ps-active-x"),e.scrollbarXWidth=0,e.scrollbarXLeft=0,c(t,"left",0)),e.scrollbarYActive?i.add(t,"ps-active-y"):(i.remove(t,"ps-active-y"),e.scrollbarYHeight=0,e.scrollbarYTop=0,c(t,"top",0))}},{"../lib/class":2,"../lib/dom":3,"../lib/helper":6,"./instances":18,"./update-scroll":20}],20:[function(t,e,n){"use strict";var r,o,l=t("./instances"),i=function(t){var e=document.createEvent("Event");return e.initEvent(t,!0,!0),e};e.exports=function(t,e,n){if("undefined"==typeof t)throw"You must provide an element to the update-scroll function";if("undefined"==typeof e)throw"You must provide an axis to the update-scroll function";if("undefined"==typeof n)throw"You must provide a value to the update-scroll function";"top"===e&&n<=0&&(t.scrollTop=n=0,t.dispatchEvent(i("ps-y-reach-start"))),"left"===e&&n<=0&&(t.scrollLeft=n=0,t.dispatchEvent(i("ps-x-reach-start")));var s=l.get(t);"top"===e&&n>=s.contentHeight-s.containerHeight&&(n=s.contentHeight-s.containerHeight,n-t.scrollTop<=1?n=t.scrollTop:t.scrollTop=n,t.dispatchEvent(i("ps-y-reach-end"))),"left"===e&&n>=s.contentWidth-s.containerWidth&&(n=s.contentWidth-s.containerWidth,n-t.scrollLeft<=1?n=t.scrollLeft:t.scrollLeft=n,t.dispatchEvent(i("ps-x-reach-end"))),r||(r=t.scrollTop),o||(o=t.scrollLeft),"top"===e&&n<r&&t.dispatchEvent(i("ps-scroll-up")),"top"===e&&n>r&&t.dispatchEvent(i("ps-scroll-down")),"left"===e&&n<o&&t.dispatchEvent(i("ps-scroll-left")),"left"===e&&n>o&&t.dispatchEvent(i("ps-scroll-right")),"top"===e&&(t.scrollTop=r=n,t.dispatchEvent(i("ps-scroll-y"))),"left"===e&&(t.scrollLeft=o=n,t.dispatchEvent(i("ps-scroll-x")))}},{"./instances":18}],21:[function(t,e,n){"use strict";var r=t("../lib/helper"),o=t("../lib/dom"),l=t("./instances"),i=t("./update-geometry"),s=t("./update-scroll");e.exports=function(t){var e=l.get(t);e&&(e.negativeScrollAdjustment=e.isNegativeScroll?t.scrollWidth-t.clientWidth:0,o.css(e.scrollbarXRail,"display","block"),o.css(e.scrollbarYRail,"display","block"),e.railXMarginWidth=r.toInt(o.css(e.scrollbarXRail,"marginLeft"))+r.toInt(o.css(e.scrollbarXRail,"marginRight")),e.railYMarginHeight=r.toInt(o.css(e.scrollbarYRail,"marginTop"))+r.toInt(o.css(e.scrollbarYRail,"marginBottom")),o.css(e.scrollbarXRail,"display","none"),o.css(e.scrollbarYRail,"display","none"),i(t),s(t,"top",t.scrollTop),s(t,"left",t.scrollLeft),o.css(e.scrollbarXRail,"display",""),o.css(e.scrollbarYRail,"display",""))}},{"../lib/dom":3,"../lib/helper":6,"./instances":18,"./update-geometry":19,"./update-scroll":20}]},{},[1]);
\ No newline at end of file
diff --git a/library/perfect-scrollbar/js/perfect-scrollbar.js b/library/perfect-scrollbar/js/perfect-scrollbar.js
new file mode 100644
index 000000000..ad0e71f3d
--- /dev/null
+++ b/library/perfect-scrollbar/js/perfect-scrollbar.js
@@ -0,0 +1,1550 @@
+/* perfect-scrollbar v0.6.16 */
+(function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
+'use strict';
+
+var ps = require('../main');
+
+if (typeof define === 'function' && define.amd) {
+  // AMD
+  define(ps);
+} else {
+  // Add to a global object.
+  window.PerfectScrollbar = ps;
+  if (typeof window.Ps === 'undefined') {
+    window.Ps = ps;
+  }
+}
+
+},{"../main":7}],2:[function(require,module,exports){
+'use strict';
+
+function oldAdd(element, className) {
+  var classes = element.className.split(' ');
+  if (classes.indexOf(className) < 0) {
+    classes.push(className);
+  }
+  element.className = classes.join(' ');
+}
+
+function oldRemove(element, className) {
+  var classes = element.className.split(' ');
+  var idx = classes.indexOf(className);
+  if (idx >= 0) {
+    classes.splice(idx, 1);
+  }
+  element.className = classes.join(' ');
+}
+
+exports.add = function (element, className) {
+  if (element.classList) {
+    element.classList.add(className);
+  } else {
+    oldAdd(element, className);
+  }
+};
+
+exports.remove = function (element, className) {
+  if (element.classList) {
+    element.classList.remove(className);
+  } else {
+    oldRemove(element, className);
+  }
+};
+
+exports.list = function (element) {
+  if (element.classList) {
+    return Array.prototype.slice.apply(element.classList);
+  } else {
+    return element.className.split(' ');
+  }
+};
+
+},{}],3:[function(require,module,exports){
+'use strict';
+
+var DOM = {};
+
+DOM.e = function (tagName, className) {
+  var element = document.createElement(tagName);
+  element.className = className;
+  return element;
+};
+
+DOM.appendTo = function (child, parent) {
+  parent.appendChild(child);
+  return child;
+};
+
+function cssGet(element, styleName) {
+  return window.getComputedStyle(element)[styleName];
+}
+
+function cssSet(element, styleName, styleValue) {
+  if (typeof styleValue === 'number') {
+    styleValue = styleValue.toString() + 'px';
+  }
+  element.style[styleName] = styleValue;
+  return element;
+}
+
+function cssMultiSet(element, obj) {
+  for (var key in obj) {
+    var val = obj[key];
+    if (typeof val === 'number') {
+      val = val.toString() + 'px';
+    }
+    element.style[key] = val;
+  }
+  return element;
+}
+
+DOM.css = function (element, styleNameOrObject, styleValue) {
+  if (typeof styleNameOrObject === 'object') {
+    // multiple set with object
+    return cssMultiSet(element, styleNameOrObject);
+  } else {
+    if (typeof styleValue === 'undefined') {
+      return cssGet(element, styleNameOrObject);
+    } else {
+      return cssSet(element, styleNameOrObject, styleValue);
+    }
+  }
+};
+
+DOM.matches = function (element, query) {
+  if (typeof element.matches !== 'undefined') {
+    return element.matches(query);
+  } else {
+    if (typeof element.matchesSelector !== 'undefined') {
+      return element.matchesSelector(query);
+    } else if (typeof element.webkitMatchesSelector !== 'undefined') {
+      return element.webkitMatchesSelector(query);
+    } else if (typeof element.mozMatchesSelector !== 'undefined') {
+      return element.mozMatchesSelector(query);
+    } else if (typeof element.msMatchesSelector !== 'undefined') {
+      return element.msMatchesSelector(query);
+    }
+  }
+};
+
+DOM.remove = function (element) {
+  if (typeof element.remove !== 'undefined') {
+    element.remove();
+  } else {
+    if (element.parentNode) {
+      element.parentNode.removeChild(element);
+    }
+  }
+};
+
+DOM.queryChildren = function (element, selector) {
+  return Array.prototype.filter.call(element.childNodes, function (child) {
+    return DOM.matches(child, selector);
+  });
+};
+
+module.exports = DOM;
+
+},{}],4:[function(require,module,exports){
+'use strict';
+
+var EventElement = function (element) {
+  this.element = element;
+  this.events = {};
+};
+
+EventElement.prototype.bind = function (eventName, handler) {
+  if (typeof this.events[eventName] === 'undefined') {
+    this.events[eventName] = [];
+  }
+  this.events[eventName].push(handler);
+  this.element.addEventListener(eventName, handler, false);
+};
+
+EventElement.prototype.unbind = function (eventName, handler) {
+  var isHandlerProvided = (typeof handler !== 'undefined');
+  this.events[eventName] = this.events[eventName].filter(function (hdlr) {
+    if (isHandlerProvided && hdlr !== handler) {
+      return true;
+    }
+    this.element.removeEventListener(eventName, hdlr, false);
+    return false;
+  }, this);
+};
+
+EventElement.prototype.unbindAll = function () {
+  for (var name in this.events) {
+    this.unbind(name);
+  }
+};
+
+var EventManager = function () {
+  this.eventElements = [];
+};
+
+EventManager.prototype.eventElement = function (element) {
+  var ee = this.eventElements.filter(function (eventElement) {
+    return eventElement.element === element;
+  })[0];
+  if (typeof ee === 'undefined') {
+    ee = new EventElement(element);
+    this.eventElements.push(ee);
+  }
+  return ee;
+};
+
+EventManager.prototype.bind = function (element, eventName, handler) {
+  this.eventElement(element).bind(eventName, handler);
+};
+
+EventManager.prototype.unbind = function (element, eventName, handler) {
+  this.eventElement(element).unbind(eventName, handler);
+};
+
+EventManager.prototype.unbindAll = function () {
+  for (var i = 0; i < this.eventElements.length; i++) {
+    this.eventElements[i].unbindAll();
+  }
+};
+
+EventManager.prototype.once = function (element, eventName, handler) {
+  var ee = this.eventElement(element);
+  var onceHandler = function (e) {
+    ee.unbind(eventName, onceHandler);
+    handler(e);
+  };
+  ee.bind(eventName, onceHandler);
+};
+
+module.exports = EventManager;
+
+},{}],5:[function(require,module,exports){
+'use strict';
+
+module.exports = (function () {
+  function s4() {
+    return Math.floor((1 + Math.random()) * 0x10000)
+               .toString(16)
+               .substring(1);
+  }
+  return function () {
+    return s4() + s4() + '-' + s4() + '-' + s4() + '-' +
+           s4() + '-' + s4() + s4() + s4();
+  };
+})();
+
+},{}],6:[function(require,module,exports){
+'use strict';
+
+var cls = require('./class');
+var dom = require('./dom');
+
+var toInt = exports.toInt = function (x) {
+  return parseInt(x, 10) || 0;
+};
+
+var clone = exports.clone = function (obj) {
+  if (!obj) {
+    return null;
+  } else if (obj.constructor === Array) {
+    return obj.map(clone);
+  } else if (typeof obj === 'object') {
+    var result = {};
+    for (var key in obj) {
+      result[key] = clone(obj[key]);
+    }
+    return result;
+  } else {
+    return obj;
+  }
+};
+
+exports.extend = function (original, source) {
+  var result = clone(original);
+  for (var key in source) {
+    result[key] = clone(source[key]);
+  }
+  return result;
+};
+
+exports.isEditable = function (el) {
+  return dom.matches(el, "input,[contenteditable]") ||
+         dom.matches(el, "select,[contenteditable]") ||
+         dom.matches(el, "textarea,[contenteditable]") ||
+         dom.matches(el, "button,[contenteditable]");
+};
+
+exports.removePsClasses = function (element) {
+  var clsList = cls.list(element);
+  for (var i = 0; i < clsList.length; i++) {
+    var className = clsList[i];
+    if (className.indexOf('ps-') === 0) {
+      cls.remove(element, className);
+    }
+  }
+};
+
+exports.outerWidth = function (element) {
+  return toInt(dom.css(element, 'width')) +
+         toInt(dom.css(element, 'paddingLeft')) +
+         toInt(dom.css(element, 'paddingRight')) +
+         toInt(dom.css(element, 'borderLeftWidth')) +
+         toInt(dom.css(element, 'borderRightWidth'));
+};
+
+exports.startScrolling = function (element, axis) {
+  cls.add(element, 'ps-in-scrolling');
+  if (typeof axis !== 'undefined') {
+    cls.add(element, 'ps-' + axis);
+  } else {
+    cls.add(element, 'ps-x');
+    cls.add(element, 'ps-y');
+  }
+};
+
+exports.stopScrolling = function (element, axis) {
+  cls.remove(element, 'ps-in-scrolling');
+  if (typeof axis !== 'undefined') {
+    cls.remove(element, 'ps-' + axis);
+  } else {
+    cls.remove(element, 'ps-x');
+    cls.remove(element, 'ps-y');
+  }
+};
+
+exports.env = {
+  isWebKit: 'WebkitAppearance' in document.documentElement.style,
+  supportsTouch: (('ontouchstart' in window) || window.DocumentTouch && document instanceof window.DocumentTouch),
+  supportsIePointer: window.navigator.msMaxTouchPoints !== null
+};
+
+},{"./class":2,"./dom":3}],7:[function(require,module,exports){
+'use strict';
+
+var destroy = require('./plugin/destroy');
+var initialize = require('./plugin/initialize');
+var update = require('./plugin/update');
+
+module.exports = {
+  initialize: initialize,
+  update: update,
+  destroy: destroy
+};
+
+},{"./plugin/destroy":9,"./plugin/initialize":17,"./plugin/update":21}],8:[function(require,module,exports){
+'use strict';
+
+module.exports = {
+  handlers: ['click-rail', 'drag-scrollbar', 'keyboard', 'wheel', 'touch'],
+  maxScrollbarLength: null,
+  minScrollbarLength: null,
+  scrollXMarginOffset: 0,
+  scrollYMarginOffset: 0,
+  suppressScrollX: false,
+  suppressScrollY: false,
+  swipePropagation: true,
+  useBothWheelAxes: false,
+  wheelPropagation: false,
+  wheelSpeed: 1,
+  theme: 'default'
+};
+
+},{}],9:[function(require,module,exports){
+'use strict';
+
+var _ = require('../lib/helper');
+var dom = require('../lib/dom');
+var instances = require('./instances');
+
+module.exports = function (element) {
+  var i = instances.get(element);
+
+  if (!i) {
+    return;
+  }
+
+  i.event.unbindAll();
+  dom.remove(i.scrollbarX);
+  dom.remove(i.scrollbarY);
+  dom.remove(i.scrollbarXRail);
+  dom.remove(i.scrollbarYRail);
+  _.removePsClasses(element);
+
+  instances.remove(element);
+};
+
+},{"../lib/dom":3,"../lib/helper":6,"./instances":18}],10:[function(require,module,exports){
+'use strict';
+
+var instances = require('../instances');
+var updateGeometry = require('../update-geometry');
+var updateScroll = require('../update-scroll');
+
+function bindClickRailHandler(element, i) {
+  function pageOffset(el) {
+    return el.getBoundingClientRect();
+  }
+  var stopPropagation = function (e) { e.stopPropagation(); };
+
+  i.event.bind(i.scrollbarY, 'click', stopPropagation);
+  i.event.bind(i.scrollbarYRail, 'click', function (e) {
+    var positionTop = e.pageY - window.pageYOffset - pageOffset(i.scrollbarYRail).top;
+    var direction = positionTop > i.scrollbarYTop ? 1 : -1;
+
+    updateScroll(element, 'top', element.scrollTop + direction * i.containerHeight);
+    updateGeometry(element);
+
+    e.stopPropagation();
+  });
+
+  i.event.bind(i.scrollbarX, 'click', stopPropagation);
+  i.event.bind(i.scrollbarXRail, 'click', function (e) {
+    var positionLeft = e.pageX - window.pageXOffset - pageOffset(i.scrollbarXRail).left;
+    var direction = positionLeft > i.scrollbarXLeft ? 1 : -1;
+
+    updateScroll(element, 'left', element.scrollLeft + direction * i.containerWidth);
+    updateGeometry(element);
+
+    e.stopPropagation();
+  });
+}
+
+module.exports = function (element) {
+  var i = instances.get(element);
+  bindClickRailHandler(element, i);
+};
+
+},{"../instances":18,"../update-geometry":19,"../update-scroll":20}],11:[function(require,module,exports){
+'use strict';
+
+var _ = require('../../lib/helper');
+var dom = require('../../lib/dom');
+var instances = require('../instances');
+var updateGeometry = require('../update-geometry');
+var updateScroll = require('../update-scroll');
+
+function bindMouseScrollXHandler(element, i) {
+  var currentLeft = null;
+  var currentPageX = null;
+
+  function updateScrollLeft(deltaX) {
+    var newLeft = currentLeft + (deltaX * i.railXRatio);
+    var maxLeft = Math.max(0, i.scrollbarXRail.getBoundingClientRect().left) + (i.railXRatio * (i.railXWidth - i.scrollbarXWidth));
+
+    if (newLeft < 0) {
+      i.scrollbarXLeft = 0;
+    } else if (newLeft > maxLeft) {
+      i.scrollbarXLeft = maxLeft;
+    } else {
+      i.scrollbarXLeft = newLeft;
+    }
+
+    var scrollLeft = _.toInt(i.scrollbarXLeft * (i.contentWidth - i.containerWidth) / (i.containerWidth - (i.railXRatio * i.scrollbarXWidth))) - i.negativeScrollAdjustment;
+    updateScroll(element, 'left', scrollLeft);
+  }
+
+  var mouseMoveHandler = function (e) {
+    updateScrollLeft(e.pageX - currentPageX);
+    updateGeometry(element);
+    e.stopPropagation();
+    e.preventDefault();
+  };
+
+  var mouseUpHandler = function () {
+    _.stopScrolling(element, 'x');
+    i.event.unbind(i.ownerDocument, 'mousemove', mouseMoveHandler);
+  };
+
+  i.event.bind(i.scrollbarX, 'mousedown', function (e) {
+    currentPageX = e.pageX;
+    currentLeft = _.toInt(dom.css(i.scrollbarX, 'left')) * i.railXRatio;
+    _.startScrolling(element, 'x');
+
+    i.event.bind(i.ownerDocument, 'mousemove', mouseMoveHandler);
+    i.event.once(i.ownerDocument, 'mouseup', mouseUpHandler);
+
+    e.stopPropagation();
+    e.preventDefault();
+  });
+}
+
+function bindMouseScrollYHandler(element, i) {
+  var currentTop = null;
+  var currentPageY = null;
+
+  function updateScrollTop(deltaY) {
+    var newTop = currentTop + (deltaY * i.railYRatio);
+    var maxTop = Math.max(0, i.scrollbarYRail.getBoundingClientRect().top) + (i.railYRatio * (i.railYHeight - i.scrollbarYHeight));
+
+    if (newTop < 0) {
+      i.scrollbarYTop = 0;
+    } else if (newTop > maxTop) {
+      i.scrollbarYTop = maxTop;
+    } else {
+      i.scrollbarYTop = newTop;
+    }
+
+    var scrollTop = _.toInt(i.scrollbarYTop * (i.contentHeight - i.containerHeight) / (i.containerHeight - (i.railYRatio * i.scrollbarYHeight)));
+    updateScroll(element, 'top', scrollTop);
+  }
+
+  var mouseMoveHandler = function (e) {
+    updateScrollTop(e.pageY - currentPageY);
+    updateGeometry(element);
+    e.stopPropagation();
+    e.preventDefault();
+  };
+
+  var mouseUpHandler = function () {
+    _.stopScrolling(element, 'y');
+    i.event.unbind(i.ownerDocument, 'mousemove', mouseMoveHandler);
+  };
+
+  i.event.bind(i.scrollbarY, 'mousedown', function (e) {
+    currentPageY = e.pageY;
+    currentTop = _.toInt(dom.css(i.scrollbarY, 'top')) * i.railYRatio;
+    _.startScrolling(element, 'y');
+
+    i.event.bind(i.ownerDocument, 'mousemove', mouseMoveHandler);
+    i.event.once(i.ownerDocument, 'mouseup', mouseUpHandler);
+
+    e.stopPropagation();
+    e.preventDefault();
+  });
+}
+
+module.exports = function (element) {
+  var i = instances.get(element);
+  bindMouseScrollXHandler(element, i);
+  bindMouseScrollYHandler(element, i);
+};
+
+},{"../../lib/dom":3,"../../lib/helper":6,"../instances":18,"../update-geometry":19,"../update-scroll":20}],12:[function(require,module,exports){
+'use strict';
+
+var _ = require('../../lib/helper');
+var dom = require('../../lib/dom');
+var instances = require('../instances');
+var updateGeometry = require('../update-geometry');
+var updateScroll = require('../update-scroll');
+
+function bindKeyboardHandler(element, i) {
+  var hovered = false;
+  i.event.bind(element, 'mouseenter', function () {
+    hovered = true;
+  });
+  i.event.bind(element, 'mouseleave', function () {
+    hovered = false;
+  });
+
+  var shouldPrevent = false;
+  function shouldPreventDefault(deltaX, deltaY) {
+    var scrollTop = element.scrollTop;
+    if (deltaX === 0) {
+      if (!i.scrollbarYActive) {
+        return false;
+      }
+      if ((scrollTop === 0 && deltaY > 0) || (scrollTop >= i.contentHeight - i.containerHeight && deltaY < 0)) {
+        return !i.settings.wheelPropagation;
+      }
+    }
+
+    var scrollLeft = element.scrollLeft;
+    if (deltaY === 0) {
+      if (!i.scrollbarXActive) {
+        return false;
+      }
+      if ((scrollLeft === 0 && deltaX < 0) || (scrollLeft >= i.contentWidth - i.containerWidth && deltaX > 0)) {
+        return !i.settings.wheelPropagation;
+      }
+    }
+    return true;
+  }
+
+  i.event.bind(i.ownerDocument, 'keydown', function (e) {
+    if ((e.isDefaultPrevented && e.isDefaultPrevented()) || e.defaultPrevented) {
+      return;
+    }
+
+    var focused = dom.matches(i.scrollbarX, ':focus') ||
+                  dom.matches(i.scrollbarY, ':focus');
+
+    if (!hovered && !focused) {
+      return;
+    }
+
+    var activeElement = document.activeElement ? document.activeElement : i.ownerDocument.activeElement;
+    if (activeElement) {
+      if (activeElement.tagName === 'IFRAME') {
+        activeElement = activeElement.contentDocument.activeElement;
+      } else {
+        // go deeper if element is a webcomponent
+        while (activeElement.shadowRoot) {
+          activeElement = activeElement.shadowRoot.activeElement;
+        }
+      }
+      if (_.isEditable(activeElement)) {
+        return;
+      }
+    }
+
+    var deltaX = 0;
+    var deltaY = 0;
+
+    switch (e.which) {
+    case 37: // left
+      if (e.metaKey) {
+        deltaX = -i.contentWidth;
+      } else if (e.altKey) {
+        deltaX = -i.containerWidth;
+      } else {
+        deltaX = -30;
+      }
+      break;
+    case 38: // up
+      if (e.metaKey) {
+        deltaY = i.contentHeight;
+      } else if (e.altKey) {
+        deltaY = i.containerHeight;
+      } else {
+        deltaY = 30;
+      }
+      break;
+    case 39: // right
+      if (e.metaKey) {
+        deltaX = i.contentWidth;
+      } else if (e.altKey) {
+        deltaX = i.containerWidth;
+      } else {
+        deltaX = 30;
+      }
+      break;
+    case 40: // down
+      if (e.metaKey) {
+        deltaY = -i.contentHeight;
+      } else if (e.altKey) {
+        deltaY = -i.containerHeight;
+      } else {
+        deltaY = -30;
+      }
+      break;
+    case 33: // page up
+      deltaY = 90;
+      break;
+    case 32: // space bar
+      if (e.shiftKey) {
+        deltaY = 90;
+      } else {
+        deltaY = -90;
+      }
+      break;
+    case 34: // page down
+      deltaY = -90;
+      break;
+    case 35: // end
+      if (e.ctrlKey) {
+        deltaY = -i.contentHeight;
+      } else {
+        deltaY = -i.containerHeight;
+      }
+      break;
+    case 36: // home
+      if (e.ctrlKey) {
+        deltaY = element.scrollTop;
+      } else {
+        deltaY = i.containerHeight;
+      }
+      break;
+    default:
+      return;
+    }
+
+    updateScroll(element, 'top', element.scrollTop - deltaY);
+    updateScroll(element, 'left', element.scrollLeft + deltaX);
+    updateGeometry(element);
+
+    shouldPrevent = shouldPreventDefault(deltaX, deltaY);
+    if (shouldPrevent) {
+      e.preventDefault();
+    }
+  });
+}
+
+module.exports = function (element) {
+  var i = instances.get(element);
+  bindKeyboardHandler(element, i);
+};
+
+},{"../../lib/dom":3,"../../lib/helper":6,"../instances":18,"../update-geometry":19,"../update-scroll":20}],13:[function(require,module,exports){
+'use strict';
+
+var instances = require('../instances');
+var updateGeometry = require('../update-geometry');
+var updateScroll = require('../update-scroll');
+
+function bindMouseWheelHandler(element, i) {
+  var shouldPrevent = false;
+
+  function shouldPreventDefault(deltaX, deltaY) {
+    var scrollTop = element.scrollTop;
+    if (deltaX === 0) {
+      if (!i.scrollbarYActive) {
+        return false;
+      }
+      if ((scrollTop === 0 && deltaY > 0) || (scrollTop >= i.contentHeight - i.containerHeight && deltaY < 0)) {
+        return !i.settings.wheelPropagation;
+      }
+    }
+
+    var scrollLeft = element.scrollLeft;
+    if (deltaY === 0) {
+      if (!i.scrollbarXActive) {
+        return false;
+      }
+      if ((scrollLeft === 0 && deltaX < 0) || (scrollLeft >= i.contentWidth - i.containerWidth && deltaX > 0)) {
+        return !i.settings.wheelPropagation;
+      }
+    }
+    return true;
+  }
+
+  function getDeltaFromEvent(e) {
+    var deltaX = e.deltaX;
+    var deltaY = -1 * e.deltaY;
+
+    if (typeof deltaX === "undefined" || typeof deltaY === "undefined") {
+      // OS X Safari
+      deltaX = -1 * e.wheelDeltaX / 6;
+      deltaY = e.wheelDeltaY / 6;
+    }
+
+    if (e.deltaMode && e.deltaMode === 1) {
+      // Firefox in deltaMode 1: Line scrolling
+      deltaX *= 10;
+      deltaY *= 10;
+    }
+
+    if (deltaX !== deltaX && deltaY !== deltaY/* NaN checks */) {
+      // IE in some mouse drivers
+      deltaX = 0;
+      deltaY = e.wheelDelta;
+    }
+
+    if (e.shiftKey) {
+      // reverse axis with shift key
+      return [-deltaY, -deltaX];
+    }
+    return [deltaX, deltaY];
+  }
+
+  function shouldBeConsumedByChild(deltaX, deltaY) {
+    var child = element.querySelector('textarea:hover, select[multiple]:hover, .ps-child:hover');
+    if (child) {
+      if (!window.getComputedStyle(child).overflow.match(/(scroll|auto)/)) {
+        // if not scrollable
+        return false;
+      }
+
+      var maxScrollTop = child.scrollHeight - child.clientHeight;
+      if (maxScrollTop > 0) {
+        if (!(child.scrollTop === 0 && deltaY > 0) && !(child.scrollTop === maxScrollTop && deltaY < 0)) {
+          return true;
+        }
+      }
+      var maxScrollLeft = child.scrollLeft - child.clientWidth;
+      if (maxScrollLeft > 0) {
+        if (!(child.scrollLeft === 0 && deltaX < 0) && !(child.scrollLeft === maxScrollLeft && deltaX > 0)) {
+          return true;
+        }
+      }
+    }
+    return false;
+  }
+
+  function mousewheelHandler(e) {
+    var delta = getDeltaFromEvent(e);
+
+    var deltaX = delta[0];
+    var deltaY = delta[1];
+
+    if (shouldBeConsumedByChild(deltaX, deltaY)) {
+      return;
+    }
+
+    shouldPrevent = false;
+    if (!i.settings.useBothWheelAxes) {
+      // deltaX will only be used for horizontal scrolling and deltaY will
+      // only be used for vertical scrolling - this is the default
+      updateScroll(element, 'top', element.scrollTop - (deltaY * i.settings.wheelSpeed));
+      updateScroll(element, 'left', element.scrollLeft + (deltaX * i.settings.wheelSpeed));
+    } else if (i.scrollbarYActive && !i.scrollbarXActive) {
+      // only vertical scrollbar is active and useBothWheelAxes option is
+      // active, so let's scroll vertical bar using both mouse wheel axes
+      if (deltaY) {
+        updateScroll(element, 'top', element.scrollTop - (deltaY * i.settings.wheelSpeed));
+      } else {
+        updateScroll(element, 'top', element.scrollTop + (deltaX * i.settings.wheelSpeed));
+      }
+      shouldPrevent = true;
+    } else if (i.scrollbarXActive && !i.scrollbarYActive) {
+      // useBothWheelAxes and only horizontal bar is active, so use both
+      // wheel axes for horizontal bar
+      if (deltaX) {
+        updateScroll(element, 'left', element.scrollLeft + (deltaX * i.settings.wheelSpeed));
+      } else {
+        updateScroll(element, 'left', element.scrollLeft - (deltaY * i.settings.wheelSpeed));
+      }
+      shouldPrevent = true;
+    }
+
+    updateGeometry(element);
+
+    shouldPrevent = (shouldPrevent || shouldPreventDefault(deltaX, deltaY));
+    if (shouldPrevent) {
+      e.stopPropagation();
+      e.preventDefault();
+    }
+  }
+
+  if (typeof window.onwheel !== "undefined") {
+    i.event.bind(element, 'wheel', mousewheelHandler);
+  } else if (typeof window.onmousewheel !== "undefined") {
+    i.event.bind(element, 'mousewheel', mousewheelHandler);
+  }
+}
+
+module.exports = function (element) {
+  var i = instances.get(element);
+  bindMouseWheelHandler(element, i);
+};
+
+},{"../instances":18,"../update-geometry":19,"../update-scroll":20}],14:[function(require,module,exports){
+'use strict';
+
+var instances = require('../instances');
+var updateGeometry = require('../update-geometry');
+
+function bindNativeScrollHandler(element, i) {
+  i.event.bind(element, 'scroll', function () {
+    updateGeometry(element);
+  });
+}
+
+module.exports = function (element) {
+  var i = instances.get(element);
+  bindNativeScrollHandler(element, i);
+};
+
+},{"../instances":18,"../update-geometry":19}],15:[function(require,module,exports){
+'use strict';
+
+var _ = require('../../lib/helper');
+var instances = require('../instances');
+var updateGeometry = require('../update-geometry');
+var updateScroll = require('../update-scroll');
+
+function bindSelectionHandler(element, i) {
+  function getRangeNode() {
+    var selection = window.getSelection ? window.getSelection() :
+                    document.getSelection ? document.getSelection() : '';
+    if (selection.toString().length === 0) {
+      return null;
+    } else {
+      return selection.getRangeAt(0).commonAncestorContainer;
+    }
+  }
+
+  var scrollingLoop = null;
+  var scrollDiff = {top: 0, left: 0};
+  function startScrolling() {
+    if (!scrollingLoop) {
+      scrollingLoop = setInterval(function () {
+        if (!instances.get(element)) {
+          clearInterval(scrollingLoop);
+          return;
+        }
+
+        updateScroll(element, 'top', element.scrollTop + scrollDiff.top);
+        updateScroll(element, 'left', element.scrollLeft + scrollDiff.left);
+        updateGeometry(element);
+      }, 50); // every .1 sec
+    }
+  }
+  function stopScrolling() {
+    if (scrollingLoop) {
+      clearInterval(scrollingLoop);
+      scrollingLoop = null;
+    }
+    _.stopScrolling(element);
+  }
+
+  var isSelected = false;
+  i.event.bind(i.ownerDocument, 'selectionchange', function () {
+    if (element.contains(getRangeNode())) {
+      isSelected = true;
+    } else {
+      isSelected = false;
+      stopScrolling();
+    }
+  });
+  i.event.bind(window, 'mouseup', function () {
+    if (isSelected) {
+      isSelected = false;
+      stopScrolling();
+    }
+  });
+  i.event.bind(window, 'keyup', function () {
+    if (isSelected) {
+      isSelected = false;
+      stopScrolling();
+    }
+  });
+
+  i.event.bind(window, 'mousemove', function (e) {
+    if (isSelected) {
+      var mousePosition = {x: e.pageX, y: e.pageY};
+      var containerGeometry = {
+        left: element.offsetLeft,
+        right: element.offsetLeft + element.offsetWidth,
+        top: element.offsetTop,
+        bottom: element.offsetTop + element.offsetHeight
+      };
+
+      if (mousePosition.x < containerGeometry.left + 3) {
+        scrollDiff.left = -5;
+        _.startScrolling(element, 'x');
+      } else if (mousePosition.x > containerGeometry.right - 3) {
+        scrollDiff.left = 5;
+        _.startScrolling(element, 'x');
+      } else {
+        scrollDiff.left = 0;
+      }
+
+      if (mousePosition.y < containerGeometry.top + 3) {
+        if (containerGeometry.top + 3 - mousePosition.y < 5) {
+          scrollDiff.top = -5;
+        } else {
+          scrollDiff.top = -20;
+        }
+        _.startScrolling(element, 'y');
+      } else if (mousePosition.y > containerGeometry.bottom - 3) {
+        if (mousePosition.y - containerGeometry.bottom + 3 < 5) {
+          scrollDiff.top = 5;
+        } else {
+          scrollDiff.top = 20;
+        }
+        _.startScrolling(element, 'y');
+      } else {
+        scrollDiff.top = 0;
+      }
+
+      if (scrollDiff.top === 0 && scrollDiff.left === 0) {
+        stopScrolling();
+      } else {
+        startScrolling();
+      }
+    }
+  });
+}
+
+module.exports = function (element) {
+  var i = instances.get(element);
+  bindSelectionHandler(element, i);
+};
+
+},{"../../lib/helper":6,"../instances":18,"../update-geometry":19,"../update-scroll":20}],16:[function(require,module,exports){
+'use strict';
+
+var _ = require('../../lib/helper');
+var instances = require('../instances');
+var updateGeometry = require('../update-geometry');
+var updateScroll = require('../update-scroll');
+
+function bindTouchHandler(element, i, supportsTouch, supportsIePointer) {
+  function shouldPreventDefault(deltaX, deltaY) {
+    var scrollTop = element.scrollTop;
+    var scrollLeft = element.scrollLeft;
+    var magnitudeX = Math.abs(deltaX);
+    var magnitudeY = Math.abs(deltaY);
+
+    if (magnitudeY > magnitudeX) {
+      // user is perhaps trying to swipe up/down the page
+
+      if (((deltaY < 0) && (scrollTop === i.contentHeight - i.containerHeight)) ||
+          ((deltaY > 0) && (scrollTop === 0))) {
+        return !i.settings.swipePropagation;
+      }
+    } else if (magnitudeX > magnitudeY) {
+      // user is perhaps trying to swipe left/right across the page
+
+      if (((deltaX < 0) && (scrollLeft === i.contentWidth - i.containerWidth)) ||
+          ((deltaX > 0) && (scrollLeft === 0))) {
+        return !i.settings.swipePropagation;
+      }
+    }
+
+    return true;
+  }
+
+  function applyTouchMove(differenceX, differenceY) {
+    updateScroll(element, 'top', element.scrollTop - differenceY);
+    updateScroll(element, 'left', element.scrollLeft - differenceX);
+
+    updateGeometry(element);
+  }
+
+  var startOffset = {};
+  var startTime = 0;
+  var speed = {};
+  var easingLoop = null;
+  var inGlobalTouch = false;
+  var inLocalTouch = false;
+
+  function globalTouchStart() {
+    inGlobalTouch = true;
+  }
+  function globalTouchEnd() {
+    inGlobalTouch = false;
+  }
+
+  function getTouch(e) {
+    if (e.targetTouches) {
+      return e.targetTouches[0];
+    } else {
+      // Maybe IE pointer
+      return e;
+    }
+  }
+  function shouldHandle(e) {
+    if (e.targetTouches && e.targetTouches.length === 1) {
+      return true;
+    }
+    if (e.pointerType && e.pointerType !== 'mouse' && e.pointerType !== e.MSPOINTER_TYPE_MOUSE) {
+      return true;
+    }
+    return false;
+  }
+  function touchStart(e) {
+    if (shouldHandle(e)) {
+      inLocalTouch = true;
+
+      var touch = getTouch(e);
+
+      startOffset.pageX = touch.pageX;
+      startOffset.pageY = touch.pageY;
+
+      startTime = (new Date()).getTime();
+
+      if (easingLoop !== null) {
+        clearInterval(easingLoop);
+      }
+
+      e.stopPropagation();
+    }
+  }
+  function touchMove(e) {
+    if (!inLocalTouch && i.settings.swipePropagation) {
+      touchStart(e);
+    }
+    if (!inGlobalTouch && inLocalTouch && shouldHandle(e)) {
+      var touch = getTouch(e);
+
+      var currentOffset = {pageX: touch.pageX, pageY: touch.pageY};
+
+      var differenceX = currentOffset.pageX - startOffset.pageX;
+      var differenceY = currentOffset.pageY - startOffset.pageY;
+
+      applyTouchMove(differenceX, differenceY);
+      startOffset = currentOffset;
+
+      var currentTime = (new Date()).getTime();
+
+      var timeGap = currentTime - startTime;
+      if (timeGap > 0) {
+        speed.x = differenceX / timeGap;
+        speed.y = differenceY / timeGap;
+        startTime = currentTime;
+      }
+
+      if (shouldPreventDefault(differenceX, differenceY)) {
+        e.stopPropagation();
+        e.preventDefault();
+      }
+    }
+  }
+  function touchEnd() {
+    if (!inGlobalTouch && inLocalTouch) {
+      inLocalTouch = false;
+
+      clearInterval(easingLoop);
+      easingLoop = setInterval(function () {
+        if (!instances.get(element)) {
+          clearInterval(easingLoop);
+          return;
+        }
+
+        if (!speed.x && !speed.y) {
+          clearInterval(easingLoop);
+          return;
+        }
+
+        if (Math.abs(speed.x) < 0.01 && Math.abs(speed.y) < 0.01) {
+          clearInterval(easingLoop);
+          return;
+        }
+
+        applyTouchMove(speed.x * 30, speed.y * 30);
+
+        speed.x *= 0.8;
+        speed.y *= 0.8;
+      }, 10);
+    }
+  }
+
+  if (supportsTouch) {
+    i.event.bind(window, 'touchstart', globalTouchStart);
+    i.event.bind(window, 'touchend', globalTouchEnd);
+    i.event.bind(element, 'touchstart', touchStart);
+    i.event.bind(element, 'touchmove', touchMove);
+    i.event.bind(element, 'touchend', touchEnd);
+  } else if (supportsIePointer) {
+    if (window.PointerEvent) {
+      i.event.bind(window, 'pointerdown', globalTouchStart);
+      i.event.bind(window, 'pointerup', globalTouchEnd);
+      i.event.bind(element, 'pointerdown', touchStart);
+      i.event.bind(element, 'pointermove', touchMove);
+      i.event.bind(element, 'pointerup', touchEnd);
+    } else if (window.MSPointerEvent) {
+      i.event.bind(window, 'MSPointerDown', globalTouchStart);
+      i.event.bind(window, 'MSPointerUp', globalTouchEnd);
+      i.event.bind(element, 'MSPointerDown', touchStart);
+      i.event.bind(element, 'MSPointerMove', touchMove);
+      i.event.bind(element, 'MSPointerUp', touchEnd);
+    }
+  }
+}
+
+module.exports = function (element) {
+  if (!_.env.supportsTouch && !_.env.supportsIePointer) {
+    return;
+  }
+
+  var i = instances.get(element);
+  bindTouchHandler(element, i, _.env.supportsTouch, _.env.supportsIePointer);
+};
+
+},{"../../lib/helper":6,"../instances":18,"../update-geometry":19,"../update-scroll":20}],17:[function(require,module,exports){
+'use strict';
+
+var _ = require('../lib/helper');
+var cls = require('../lib/class');
+var instances = require('./instances');
+var updateGeometry = require('./update-geometry');
+
+// Handlers
+var handlers = {
+  'click-rail': require('./handler/click-rail'),
+  'drag-scrollbar': require('./handler/drag-scrollbar'),
+  'keyboard': require('./handler/keyboard'),
+  'wheel': require('./handler/mouse-wheel'),
+  'touch': require('./handler/touch'),
+  'selection': require('./handler/selection')
+};
+var nativeScrollHandler = require('./handler/native-scroll');
+
+module.exports = function (element, userSettings) {
+  userSettings = typeof userSettings === 'object' ? userSettings : {};
+
+  cls.add(element, 'ps-container');
+
+  // Create a plugin instance.
+  var i = instances.add(element);
+
+  i.settings = _.extend(i.settings, userSettings);
+  cls.add(element, 'ps-theme-' + i.settings.theme);
+
+  i.settings.handlers.forEach(function (handlerName) {
+    handlers[handlerName](element);
+  });
+
+  nativeScrollHandler(element);
+
+  updateGeometry(element);
+};
+
+},{"../lib/class":2,"../lib/helper":6,"./handler/click-rail":10,"./handler/drag-scrollbar":11,"./handler/keyboard":12,"./handler/mouse-wheel":13,"./handler/native-scroll":14,"./handler/selection":15,"./handler/touch":16,"./instances":18,"./update-geometry":19}],18:[function(require,module,exports){
+'use strict';
+
+var _ = require('../lib/helper');
+var cls = require('../lib/class');
+var defaultSettings = require('./default-setting');
+var dom = require('../lib/dom');
+var EventManager = require('../lib/event-manager');
+var guid = require('../lib/guid');
+
+var instances = {};
+
+function Instance(element) {
+  var i = this;
+
+  i.settings = _.clone(defaultSettings);
+  i.containerWidth = null;
+  i.containerHeight = null;
+  i.contentWidth = null;
+  i.contentHeight = null;
+
+  i.isRtl = dom.css(element, 'direction') === "rtl";
+  i.isNegativeScroll = (function () {
+    var originalScrollLeft = element.scrollLeft;
+    var result = null;
+    element.scrollLeft = -1;
+    result = element.scrollLeft < 0;
+    element.scrollLeft = originalScrollLeft;
+    return result;
+  })();
+  i.negativeScrollAdjustment = i.isNegativeScroll ? element.scrollWidth - element.clientWidth : 0;
+  i.event = new EventManager();
+  i.ownerDocument = element.ownerDocument || document;
+
+  function focus() {
+    cls.add(element, 'ps-focus');
+  }
+
+  function blur() {
+    cls.remove(element, 'ps-focus');
+  }
+
+  i.scrollbarXRail = dom.appendTo(dom.e('div', 'ps-scrollbar-x-rail'), element);
+  i.scrollbarX = dom.appendTo(dom.e('div', 'ps-scrollbar-x'), i.scrollbarXRail);
+  i.scrollbarX.setAttribute('tabindex', 0);
+  i.event.bind(i.scrollbarX, 'focus', focus);
+  i.event.bind(i.scrollbarX, 'blur', blur);
+  i.scrollbarXActive = null;
+  i.scrollbarXWidth = null;
+  i.scrollbarXLeft = null;
+  i.scrollbarXBottom = _.toInt(dom.css(i.scrollbarXRail, 'bottom'));
+  i.isScrollbarXUsingBottom = i.scrollbarXBottom === i.scrollbarXBottom; // !isNaN
+  i.scrollbarXTop = i.isScrollbarXUsingBottom ? null : _.toInt(dom.css(i.scrollbarXRail, 'top'));
+  i.railBorderXWidth = _.toInt(dom.css(i.scrollbarXRail, 'borderLeftWidth')) + _.toInt(dom.css(i.scrollbarXRail, 'borderRightWidth'));
+  // Set rail to display:block to calculate margins
+  dom.css(i.scrollbarXRail, 'display', 'block');
+  i.railXMarginWidth = _.toInt(dom.css(i.scrollbarXRail, 'marginLeft')) + _.toInt(dom.css(i.scrollbarXRail, 'marginRight'));
+  dom.css(i.scrollbarXRail, 'display', '');
+  i.railXWidth = null;
+  i.railXRatio = null;
+
+  i.scrollbarYRail = dom.appendTo(dom.e('div', 'ps-scrollbar-y-rail'), element);
+  i.scrollbarY = dom.appendTo(dom.e('div', 'ps-scrollbar-y'), i.scrollbarYRail);
+  i.scrollbarY.setAttribute('tabindex', 0);
+  i.event.bind(i.scrollbarY, 'focus', focus);
+  i.event.bind(i.scrollbarY, 'blur', blur);
+  i.scrollbarYActive = null;
+  i.scrollbarYHeight = null;
+  i.scrollbarYTop = null;
+  i.scrollbarYRight = _.toInt(dom.css(i.scrollbarYRail, 'right'));
+  i.isScrollbarYUsingRight = i.scrollbarYRight === i.scrollbarYRight; // !isNaN
+  i.scrollbarYLeft = i.isScrollbarYUsingRight ? null : _.toInt(dom.css(i.scrollbarYRail, 'left'));
+  i.scrollbarYOuterWidth = i.isRtl ? _.outerWidth(i.scrollbarY) : null;
+  i.railBorderYWidth = _.toInt(dom.css(i.scrollbarYRail, 'borderTopWidth')) + _.toInt(dom.css(i.scrollbarYRail, 'borderBottomWidth'));
+  dom.css(i.scrollbarYRail, 'display', 'block');
+  i.railYMarginHeight = _.toInt(dom.css(i.scrollbarYRail, 'marginTop')) + _.toInt(dom.css(i.scrollbarYRail, 'marginBottom'));
+  dom.css(i.scrollbarYRail, 'display', '');
+  i.railYHeight = null;
+  i.railYRatio = null;
+}
+
+function getId(element) {
+  return element.getAttribute('data-ps-id');
+}
+
+function setId(element, id) {
+  element.setAttribute('data-ps-id', id);
+}
+
+function removeId(element) {
+  element.removeAttribute('data-ps-id');
+}
+
+exports.add = function (element) {
+  var newId = guid();
+  setId(element, newId);
+  instances[newId] = new Instance(element);
+  return instances[newId];
+};
+
+exports.remove = function (element) {
+  delete instances[getId(element)];
+  removeId(element);
+};
+
+exports.get = function (element) {
+  return instances[getId(element)];
+};
+
+},{"../lib/class":2,"../lib/dom":3,"../lib/event-manager":4,"../lib/guid":5,"../lib/helper":6,"./default-setting":8}],19:[function(require,module,exports){
+'use strict';
+
+var _ = require('../lib/helper');
+var cls = require('../lib/class');
+var dom = require('../lib/dom');
+var instances = require('./instances');
+var updateScroll = require('./update-scroll');
+
+function getThumbSize(i, thumbSize) {
+  if (i.settings.minScrollbarLength) {
+    thumbSize = Math.max(thumbSize, i.settings.minScrollbarLength);
+  }
+  if (i.settings.maxScrollbarLength) {
+    thumbSize = Math.min(thumbSize, i.settings.maxScrollbarLength);
+  }
+  return thumbSize;
+}
+
+function updateCss(element, i) {
+  var xRailOffset = {width: i.railXWidth};
+  if (i.isRtl) {
+    xRailOffset.left = i.negativeScrollAdjustment + element.scrollLeft + i.containerWidth - i.contentWidth;
+  } else {
+    xRailOffset.left = element.scrollLeft;
+  }
+  if (i.isScrollbarXUsingBottom) {
+    xRailOffset.bottom = i.scrollbarXBottom - element.scrollTop;
+  } else {
+    xRailOffset.top = i.scrollbarXTop + element.scrollTop;
+  }
+  dom.css(i.scrollbarXRail, xRailOffset);
+
+  var yRailOffset = {top: element.scrollTop, height: i.railYHeight};
+  if (i.isScrollbarYUsingRight) {
+    if (i.isRtl) {
+      yRailOffset.right = i.contentWidth - (i.negativeScrollAdjustment + element.scrollLeft) - i.scrollbarYRight - i.scrollbarYOuterWidth;
+    } else {
+      yRailOffset.right = i.scrollbarYRight - element.scrollLeft;
+    }
+  } else {
+    if (i.isRtl) {
+      yRailOffset.left = i.negativeScrollAdjustment + element.scrollLeft + i.containerWidth * 2 - i.contentWidth - i.scrollbarYLeft - i.scrollbarYOuterWidth;
+    } else {
+      yRailOffset.left = i.scrollbarYLeft + element.scrollLeft;
+    }
+  }
+  dom.css(i.scrollbarYRail, yRailOffset);
+
+  dom.css(i.scrollbarX, {left: i.scrollbarXLeft, width: i.scrollbarXWidth - i.railBorderXWidth});
+  dom.css(i.scrollbarY, {top: i.scrollbarYTop, height: i.scrollbarYHeight - i.railBorderYWidth});
+}
+
+module.exports = function (element) {
+  var i = instances.get(element);
+
+  i.containerWidth = element.clientWidth;
+  i.containerHeight = element.clientHeight;
+  i.contentWidth = element.scrollWidth;
+  i.contentHeight = element.scrollHeight;
+
+  var existingRails;
+  if (!element.contains(i.scrollbarXRail)) {
+    existingRails = dom.queryChildren(element, '.ps-scrollbar-x-rail');
+    if (existingRails.length > 0) {
+      existingRails.forEach(function (rail) {
+        dom.remove(rail);
+      });
+    }
+    dom.appendTo(i.scrollbarXRail, element);
+  }
+  if (!element.contains(i.scrollbarYRail)) {
+    existingRails = dom.queryChildren(element, '.ps-scrollbar-y-rail');
+    if (existingRails.length > 0) {
+      existingRails.forEach(function (rail) {
+        dom.remove(rail);
+      });
+    }
+    dom.appendTo(i.scrollbarYRail, element);
+  }
+
+  if (!i.settings.suppressScrollX && i.containerWidth + i.settings.scrollXMarginOffset < i.contentWidth) {
+    i.scrollbarXActive = true;
+    i.railXWidth = i.containerWidth - i.railXMarginWidth;
+    i.railXRatio = i.containerWidth / i.railXWidth;
+    i.scrollbarXWidth = getThumbSize(i, _.toInt(i.railXWidth * i.containerWidth / i.contentWidth));
+    i.scrollbarXLeft = _.toInt((i.negativeScrollAdjustment + element.scrollLeft) * (i.railXWidth - i.scrollbarXWidth) / (i.contentWidth - i.containerWidth));
+  } else {
+    i.scrollbarXActive = false;
+  }
+
+  if (!i.settings.suppressScrollY && i.containerHeight + i.settings.scrollYMarginOffset < i.contentHeight) {
+    i.scrollbarYActive = true;
+    i.railYHeight = i.containerHeight - i.railYMarginHeight;
+    i.railYRatio = i.containerHeight / i.railYHeight;
+    i.scrollbarYHeight = getThumbSize(i, _.toInt(i.railYHeight * i.containerHeight / i.contentHeight));
+    i.scrollbarYTop = _.toInt(element.scrollTop * (i.railYHeight - i.scrollbarYHeight) / (i.contentHeight - i.containerHeight));
+  } else {
+    i.scrollbarYActive = false;
+  }
+
+  if (i.scrollbarXLeft >= i.railXWidth - i.scrollbarXWidth) {
+    i.scrollbarXLeft = i.railXWidth - i.scrollbarXWidth;
+  }
+  if (i.scrollbarYTop >= i.railYHeight - i.scrollbarYHeight) {
+    i.scrollbarYTop = i.railYHeight - i.scrollbarYHeight;
+  }
+
+  updateCss(element, i);
+
+  if (i.scrollbarXActive) {
+    cls.add(element, 'ps-active-x');
+  } else {
+    cls.remove(element, 'ps-active-x');
+    i.scrollbarXWidth = 0;
+    i.scrollbarXLeft = 0;
+    updateScroll(element, 'left', 0);
+  }
+  if (i.scrollbarYActive) {
+    cls.add(element, 'ps-active-y');
+  } else {
+    cls.remove(element, 'ps-active-y');
+    i.scrollbarYHeight = 0;
+    i.scrollbarYTop = 0;
+    updateScroll(element, 'top', 0);
+  }
+};
+
+},{"../lib/class":2,"../lib/dom":3,"../lib/helper":6,"./instances":18,"./update-scroll":20}],20:[function(require,module,exports){
+'use strict';
+
+var instances = require('./instances');
+
+var lastTop;
+var lastLeft;
+
+var createDOMEvent = function (name) {
+  var event = document.createEvent("Event");
+  event.initEvent(name, true, true);
+  return event;
+};
+
+module.exports = function (element, axis, value) {
+  if (typeof element === 'undefined') {
+    throw 'You must provide an element to the update-scroll function';
+  }
+
+  if (typeof axis === 'undefined') {
+    throw 'You must provide an axis to the update-scroll function';
+  }
+
+  if (typeof value === 'undefined') {
+    throw 'You must provide a value to the update-scroll function';
+  }
+
+  if (axis === 'top' && value <= 0) {
+    element.scrollTop = value = 0; // don't allow negative scroll
+    element.dispatchEvent(createDOMEvent('ps-y-reach-start'));
+  }
+
+  if (axis === 'left' && value <= 0) {
+    element.scrollLeft = value = 0; // don't allow negative scroll
+    element.dispatchEvent(createDOMEvent('ps-x-reach-start'));
+  }
+
+  var i = instances.get(element);
+
+  if (axis === 'top' && value >= i.contentHeight - i.containerHeight) {
+    // don't allow scroll past container
+    value = i.contentHeight - i.containerHeight;
+    if (value - element.scrollTop <= 1) {
+      // mitigates rounding errors on non-subpixel scroll values
+      value = element.scrollTop;
+    } else {
+      element.scrollTop = value;
+    }
+    element.dispatchEvent(createDOMEvent('ps-y-reach-end'));
+  }
+
+  if (axis === 'left' && value >= i.contentWidth - i.containerWidth) {
+    // don't allow scroll past container
+    value = i.contentWidth - i.containerWidth;
+    if (value - element.scrollLeft <= 1) {
+      // mitigates rounding errors on non-subpixel scroll values
+      value = element.scrollLeft;
+    } else {
+      element.scrollLeft = value;
+    }
+    element.dispatchEvent(createDOMEvent('ps-x-reach-end'));
+  }
+
+  if (!lastTop) {
+    lastTop = element.scrollTop;
+  }
+
+  if (!lastLeft) {
+    lastLeft = element.scrollLeft;
+  }
+
+  if (axis === 'top' && value < lastTop) {
+    element.dispatchEvent(createDOMEvent('ps-scroll-up'));
+  }
+
+  if (axis === 'top' && value > lastTop) {
+    element.dispatchEvent(createDOMEvent('ps-scroll-down'));
+  }
+
+  if (axis === 'left' && value < lastLeft) {
+    element.dispatchEvent(createDOMEvent('ps-scroll-left'));
+  }
+
+  if (axis === 'left' && value > lastLeft) {
+    element.dispatchEvent(createDOMEvent('ps-scroll-right'));
+  }
+
+  if (axis === 'top') {
+    element.scrollTop = lastTop = value;
+    element.dispatchEvent(createDOMEvent('ps-scroll-y'));
+  }
+
+  if (axis === 'left') {
+    element.scrollLeft = lastLeft = value;
+    element.dispatchEvent(createDOMEvent('ps-scroll-x'));
+  }
+
+};
+
+},{"./instances":18}],21:[function(require,module,exports){
+'use strict';
+
+var _ = require('../lib/helper');
+var dom = require('../lib/dom');
+var instances = require('./instances');
+var updateGeometry = require('./update-geometry');
+var updateScroll = require('./update-scroll');
+
+module.exports = function (element) {
+  var i = instances.get(element);
+
+  if (!i) {
+    return;
+  }
+
+  // Recalcuate negative scrollLeft adjustment
+  i.negativeScrollAdjustment = i.isNegativeScroll ? element.scrollWidth - element.clientWidth : 0;
+
+  // Recalculate rail margins
+  dom.css(i.scrollbarXRail, 'display', 'block');
+  dom.css(i.scrollbarYRail, 'display', 'block');
+  i.railXMarginWidth = _.toInt(dom.css(i.scrollbarXRail, 'marginLeft')) + _.toInt(dom.css(i.scrollbarXRail, 'marginRight'));
+  i.railYMarginHeight = _.toInt(dom.css(i.scrollbarYRail, 'marginTop')) + _.toInt(dom.css(i.scrollbarYRail, 'marginBottom'));
+
+  // Hide scrollbars not to affect scrollWidth and scrollHeight
+  dom.css(i.scrollbarXRail, 'display', 'none');
+  dom.css(i.scrollbarYRail, 'display', 'none');
+
+  updateGeometry(element);
+
+  // Update top/left scroll to trigger events
+  updateScroll(element, 'top', element.scrollTop);
+  updateScroll(element, 'left', element.scrollLeft);
+
+  dom.css(i.scrollbarXRail, 'display', '');
+  dom.css(i.scrollbarYRail, 'display', '');
+};
+
+},{"../lib/dom":3,"../lib/helper":6,"./instances":18,"./update-geometry":19,"./update-scroll":20}]},{},[1]);
diff --git a/library/perfect-scrollbar/js/perfect-scrollbar.min.js b/library/perfect-scrollbar/js/perfect-scrollbar.min.js
new file mode 100644
index 000000000..4d76567e8
--- /dev/null
+++ b/library/perfect-scrollbar/js/perfect-scrollbar.min.js
@@ -0,0 +1,2 @@
+/* perfect-scrollbar v0.6.16 */
+!function t(e,n,r){function o(i,s){if(!n[i]){if(!e[i]){var a="function"==typeof require&&require;if(!s&&a)return a(i,!0);if(l)return l(i,!0);var c=new Error("Cannot find module '"+i+"'");throw c.code="MODULE_NOT_FOUND",c}var u=n[i]={exports:{}};e[i][0].call(u.exports,function(t){var n=e[i][1][t];return o(n?n:t)},u,u.exports,t,e,n,r)}return n[i].exports}for(var l="function"==typeof require&&require,i=0;i<r.length;i++)o(r[i]);return o}({1:[function(t,e,n){"use strict";var r=t("../main");"function"==typeof define&&define.amd?define(r):(window.PerfectScrollbar=r,"undefined"==typeof window.Ps&&(window.Ps=r))},{"../main":7}],2:[function(t,e,n){"use strict";function r(t,e){var n=t.className.split(" ");n.indexOf(e)<0&&n.push(e),t.className=n.join(" ")}function o(t,e){var n=t.className.split(" "),r=n.indexOf(e);r>=0&&n.splice(r,1),t.className=n.join(" ")}n.add=function(t,e){t.classList?t.classList.add(e):r(t,e)},n.remove=function(t,e){t.classList?t.classList.remove(e):o(t,e)},n.list=function(t){return t.classList?Array.prototype.slice.apply(t.classList):t.className.split(" ")}},{}],3:[function(t,e,n){"use strict";function r(t,e){return window.getComputedStyle(t)[e]}function o(t,e,n){return"number"==typeof n&&(n=n.toString()+"px"),t.style[e]=n,t}function l(t,e){for(var n in e){var r=e[n];"number"==typeof r&&(r=r.toString()+"px"),t.style[n]=r}return t}var i={};i.e=function(t,e){var n=document.createElement(t);return n.className=e,n},i.appendTo=function(t,e){return e.appendChild(t),t},i.css=function(t,e,n){return"object"==typeof e?l(t,e):"undefined"==typeof n?r(t,e):o(t,e,n)},i.matches=function(t,e){return"undefined"!=typeof t.matches?t.matches(e):"undefined"!=typeof t.matchesSelector?t.matchesSelector(e):"undefined"!=typeof t.webkitMatchesSelector?t.webkitMatchesSelector(e):"undefined"!=typeof t.mozMatchesSelector?t.mozMatchesSelector(e):"undefined"!=typeof t.msMatchesSelector?t.msMatchesSelector(e):void 0},i.remove=function(t){"undefined"!=typeof t.remove?t.remove():t.parentNode&&t.parentNode.removeChild(t)},i.queryChildren=function(t,e){return Array.prototype.filter.call(t.childNodes,function(t){return i.matches(t,e)})},e.exports=i},{}],4:[function(t,e,n){"use strict";var r=function(t){this.element=t,this.events={}};r.prototype.bind=function(t,e){"undefined"==typeof this.events[t]&&(this.events[t]=[]),this.events[t].push(e),this.element.addEventListener(t,e,!1)},r.prototype.unbind=function(t,e){var n="undefined"!=typeof e;this.events[t]=this.events[t].filter(function(r){return!(!n||r===e)||(this.element.removeEventListener(t,r,!1),!1)},this)},r.prototype.unbindAll=function(){for(var t in this.events)this.unbind(t)};var o=function(){this.eventElements=[]};o.prototype.eventElement=function(t){var e=this.eventElements.filter(function(e){return e.element===t})[0];return"undefined"==typeof e&&(e=new r(t),this.eventElements.push(e)),e},o.prototype.bind=function(t,e,n){this.eventElement(t).bind(e,n)},o.prototype.unbind=function(t,e,n){this.eventElement(t).unbind(e,n)},o.prototype.unbindAll=function(){for(var t=0;t<this.eventElements.length;t++)this.eventElements[t].unbindAll()},o.prototype.once=function(t,e,n){var r=this.eventElement(t),o=function(t){r.unbind(e,o),n(t)};r.bind(e,o)},e.exports=o},{}],5:[function(t,e,n){"use strict";e.exports=function(){function t(){return Math.floor(65536*(1+Math.random())).toString(16).substring(1)}return function(){return t()+t()+"-"+t()+"-"+t()+"-"+t()+"-"+t()+t()+t()}}()},{}],6:[function(t,e,n){"use strict";var r=t("./class"),o=t("./dom"),l=n.toInt=function(t){return parseInt(t,10)||0},i=n.clone=function(t){if(t){if(t.constructor===Array)return t.map(i);if("object"==typeof t){var e={};for(var n in t)e[n]=i(t[n]);return e}return t}return null};n.extend=function(t,e){var n=i(t);for(var r in e)n[r]=i(e[r]);return n},n.isEditable=function(t){return o.matches(t,"input,[contenteditable]")||o.matches(t,"select,[contenteditable]")||o.matches(t,"textarea,[contenteditable]")||o.matches(t,"button,[contenteditable]")},n.removePsClasses=function(t){for(var e=r.list(t),n=0;n<e.length;n++){var o=e[n];0===o.indexOf("ps-")&&r.remove(t,o)}},n.outerWidth=function(t){return l(o.css(t,"width"))+l(o.css(t,"paddingLeft"))+l(o.css(t,"paddingRight"))+l(o.css(t,"borderLeftWidth"))+l(o.css(t,"borderRightWidth"))},n.startScrolling=function(t,e){r.add(t,"ps-in-scrolling"),"undefined"!=typeof e?r.add(t,"ps-"+e):(r.add(t,"ps-x"),r.add(t,"ps-y"))},n.stopScrolling=function(t,e){r.remove(t,"ps-in-scrolling"),"undefined"!=typeof e?r.remove(t,"ps-"+e):(r.remove(t,"ps-x"),r.remove(t,"ps-y"))},n.env={isWebKit:"WebkitAppearance"in document.documentElement.style,supportsTouch:"ontouchstart"in window||window.DocumentTouch&&document instanceof window.DocumentTouch,supportsIePointer:null!==window.navigator.msMaxTouchPoints}},{"./class":2,"./dom":3}],7:[function(t,e,n){"use strict";var r=t("./plugin/destroy"),o=t("./plugin/initialize"),l=t("./plugin/update");e.exports={initialize:o,update:l,destroy:r}},{"./plugin/destroy":9,"./plugin/initialize":17,"./plugin/update":21}],8:[function(t,e,n){"use strict";e.exports={handlers:["click-rail","drag-scrollbar","keyboard","wheel","touch"],maxScrollbarLength:null,minScrollbarLength:null,scrollXMarginOffset:0,scrollYMarginOffset:0,suppressScrollX:!1,suppressScrollY:!1,swipePropagation:!0,useBothWheelAxes:!1,wheelPropagation:!1,wheelSpeed:1,theme:"default"}},{}],9:[function(t,e,n){"use strict";var r=t("../lib/helper"),o=t("../lib/dom"),l=t("./instances");e.exports=function(t){var e=l.get(t);e&&(e.event.unbindAll(),o.remove(e.scrollbarX),o.remove(e.scrollbarY),o.remove(e.scrollbarXRail),o.remove(e.scrollbarYRail),r.removePsClasses(t),l.remove(t))}},{"../lib/dom":3,"../lib/helper":6,"./instances":18}],10:[function(t,e,n){"use strict";function r(t,e){function n(t){return t.getBoundingClientRect()}var r=function(t){t.stopPropagation()};e.event.bind(e.scrollbarY,"click",r),e.event.bind(e.scrollbarYRail,"click",function(r){var o=r.pageY-window.pageYOffset-n(e.scrollbarYRail).top,s=o>e.scrollbarYTop?1:-1;i(t,"top",t.scrollTop+s*e.containerHeight),l(t),r.stopPropagation()}),e.event.bind(e.scrollbarX,"click",r),e.event.bind(e.scrollbarXRail,"click",function(r){var o=r.pageX-window.pageXOffset-n(e.scrollbarXRail).left,s=o>e.scrollbarXLeft?1:-1;i(t,"left",t.scrollLeft+s*e.containerWidth),l(t),r.stopPropagation()})}var o=t("../instances"),l=t("../update-geometry"),i=t("../update-scroll");e.exports=function(t){var e=o.get(t);r(t,e)}},{"../instances":18,"../update-geometry":19,"../update-scroll":20}],11:[function(t,e,n){"use strict";function r(t,e){function n(n){var o=r+n*e.railXRatio,i=Math.max(0,e.scrollbarXRail.getBoundingClientRect().left)+e.railXRatio*(e.railXWidth-e.scrollbarXWidth);o<0?e.scrollbarXLeft=0:o>i?e.scrollbarXLeft=i:e.scrollbarXLeft=o;var s=l.toInt(e.scrollbarXLeft*(e.contentWidth-e.containerWidth)/(e.containerWidth-e.railXRatio*e.scrollbarXWidth))-e.negativeScrollAdjustment;c(t,"left",s)}var r=null,o=null,s=function(e){n(e.pageX-o),a(t),e.stopPropagation(),e.preventDefault()},u=function(){l.stopScrolling(t,"x"),e.event.unbind(e.ownerDocument,"mousemove",s)};e.event.bind(e.scrollbarX,"mousedown",function(n){o=n.pageX,r=l.toInt(i.css(e.scrollbarX,"left"))*e.railXRatio,l.startScrolling(t,"x"),e.event.bind(e.ownerDocument,"mousemove",s),e.event.once(e.ownerDocument,"mouseup",u),n.stopPropagation(),n.preventDefault()})}function o(t,e){function n(n){var o=r+n*e.railYRatio,i=Math.max(0,e.scrollbarYRail.getBoundingClientRect().top)+e.railYRatio*(e.railYHeight-e.scrollbarYHeight);o<0?e.scrollbarYTop=0:o>i?e.scrollbarYTop=i:e.scrollbarYTop=o;var s=l.toInt(e.scrollbarYTop*(e.contentHeight-e.containerHeight)/(e.containerHeight-e.railYRatio*e.scrollbarYHeight));c(t,"top",s)}var r=null,o=null,s=function(e){n(e.pageY-o),a(t),e.stopPropagation(),e.preventDefault()},u=function(){l.stopScrolling(t,"y"),e.event.unbind(e.ownerDocument,"mousemove",s)};e.event.bind(e.scrollbarY,"mousedown",function(n){o=n.pageY,r=l.toInt(i.css(e.scrollbarY,"top"))*e.railYRatio,l.startScrolling(t,"y"),e.event.bind(e.ownerDocument,"mousemove",s),e.event.once(e.ownerDocument,"mouseup",u),n.stopPropagation(),n.preventDefault()})}var l=t("../../lib/helper"),i=t("../../lib/dom"),s=t("../instances"),a=t("../update-geometry"),c=t("../update-scroll");e.exports=function(t){var e=s.get(t);r(t,e),o(t,e)}},{"../../lib/dom":3,"../../lib/helper":6,"../instances":18,"../update-geometry":19,"../update-scroll":20}],12:[function(t,e,n){"use strict";function r(t,e){function n(n,r){var o=t.scrollTop;if(0===n){if(!e.scrollbarYActive)return!1;if(0===o&&r>0||o>=e.contentHeight-e.containerHeight&&r<0)return!e.settings.wheelPropagation}var l=t.scrollLeft;if(0===r){if(!e.scrollbarXActive)return!1;if(0===l&&n<0||l>=e.contentWidth-e.containerWidth&&n>0)return!e.settings.wheelPropagation}return!0}var r=!1;e.event.bind(t,"mouseenter",function(){r=!0}),e.event.bind(t,"mouseleave",function(){r=!1});var i=!1;e.event.bind(e.ownerDocument,"keydown",function(c){if(!(c.isDefaultPrevented&&c.isDefaultPrevented()||c.defaultPrevented)){var u=l.matches(e.scrollbarX,":focus")||l.matches(e.scrollbarY,":focus");if(r||u){var d=document.activeElement?document.activeElement:e.ownerDocument.activeElement;if(d){if("IFRAME"===d.tagName)d=d.contentDocument.activeElement;else 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c=r(s),u=c[0],d=c[1];o(u,d)||(a=!1,e.settings.useBothWheelAxes?e.scrollbarYActive&&!e.scrollbarXActive?(d?i(t,"top",t.scrollTop-d*e.settings.wheelSpeed):i(t,"top",t.scrollTop+u*e.settings.wheelSpeed),a=!0):e.scrollbarXActive&&!e.scrollbarYActive&&(u?i(t,"left",t.scrollLeft+u*e.settings.wheelSpeed):i(t,"left",t.scrollLeft-d*e.settings.wheelSpeed),a=!0):(i(t,"top",t.scrollTop-d*e.settings.wheelSpeed),i(t,"left",t.scrollLeft+u*e.settings.wheelSpeed)),l(t),a=a||n(u,d),a&&(s.stopPropagation(),s.preventDefault()))}var a=!1;"undefined"!=typeof window.onwheel?e.event.bind(t,"wheel",s):"undefined"!=typeof window.onmousewheel&&e.event.bind(t,"mousewheel",s)}var o=t("../instances"),l=t("../update-geometry"),i=t("../update-scroll");e.exports=function(t){var e=o.get(t);r(t,e)}},{"../instances":18,"../update-geometry":19,"../update-scroll":20}],14:[function(t,e,n){"use strict";function r(t,e){e.event.bind(t,"scroll",function(){l(t)})}var o=t("../instances"),l=t("../update-geometry");e.exports=function(t){var e=o.get(t);r(t,e)}},{"../instances":18,"../update-geometry":19}],15:[function(t,e,n){"use strict";function r(t,e){function n(){var t=window.getSelection?window.getSelection():document.getSelection?document.getSelection():"";return 0===t.toString().length?null:t.getRangeAt(0).commonAncestorContainer}function r(){c||(c=setInterval(function(){return l.get(t)?(s(t,"top",t.scrollTop+u.top),s(t,"left",t.scrollLeft+u.left),void i(t)):void clearInterval(c)},50))}function a(){c&&(clearInterval(c),c=null),o.stopScrolling(t)}var c=null,u={top:0,left:0},d=!1;e.event.bind(e.ownerDocument,"selectionchange",function(){t.contains(n())?d=!0:(d=!1,a())}),e.event.bind(window,"mouseup",function(){d&&(d=!1,a())}),e.event.bind(window,"keyup",function(){d&&(d=!1,a())}),e.event.bind(window,"mousemove",function(e){if(d){var 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e=l.get(t);r(t,e,o.env.supportsTouch,o.env.supportsIePointer)}}},{"../../lib/helper":6,"../instances":18,"../update-geometry":19,"../update-scroll":20}],17:[function(t,e,n){"use strict";var r=t("../lib/helper"),o=t("../lib/class"),l=t("./instances"),i=t("./update-geometry"),s={"click-rail":t("./handler/click-rail"),"drag-scrollbar":t("./handler/drag-scrollbar"),keyboard:t("./handler/keyboard"),wheel:t("./handler/mouse-wheel"),touch:t("./handler/touch"),selection:t("./handler/selection")},a=t("./handler/native-scroll");e.exports=function(t,e){e="object"==typeof e?e:{},o.add(t,"ps-container");var n=l.add(t);n.settings=r.extend(n.settings,e),o.add(t,"ps-theme-"+n.settings.theme),n.settings.handlers.forEach(function(e){s[e](t)}),a(t),i(t)}},{"../lib/class":2,"../lib/helper":6,"./handler/click-rail":10,"./handler/drag-scrollbar":11,"./handler/keyboard":12,"./handler/mouse-wheel":13,"./handler/native-scroll":14,"./handler/selection":15,"./handler/touch":16,"./instances":18,"./update-geometry":19}],18:[function(t,e,n){"use strict";function r(t){function e(){a.add(t,"ps-focus")}function n(){a.remove(t,"ps-focus")}var r=this;r.settings=s.clone(c),r.containerWidth=null,r.containerHeight=null,r.contentWidth=null,r.contentHeight=null,r.isRtl="rtl"===u.css(t,"direction"),r.isNegativeScroll=function(){var e=t.scrollLeft,n=null;return t.scrollLeft=-1,n=t.scrollLeft<0,t.scrollLeft=e,n}(),r.negativeScrollAdjustment=r.isNegativeScroll?t.scrollWidth-t.clientWidth:0,r.event=new 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o(t){return t.getAttribute("data-ps-id")}function l(t,e){t.setAttribute("data-ps-id",e)}function i(t){t.removeAttribute("data-ps-id")}var s=t("../lib/helper"),a=t("../lib/class"),c=t("./default-setting"),u=t("../lib/dom"),d=t("../lib/event-manager"),p=t("../lib/guid"),f={};n.add=function(t){var e=p();return l(t,e),f[e]=new r(t),f[e]},n.remove=function(t){delete f[o(t)],i(t)},n.get=function(t){return f[o(t)]}},{"../lib/class":2,"../lib/dom":3,"../lib/event-manager":4,"../lib/guid":5,"../lib/helper":6,"./default-setting":8}],19:[function(t,e,n){"use strict";function r(t,e){return t.settings.minScrollbarLength&&(e=Math.max(e,t.settings.minScrollbarLength)),t.settings.maxScrollbarLength&&(e=Math.min(e,t.settings.maxScrollbarLength)),e}function o(t,e){var n={width:e.railXWidth};e.isRtl?n.left=e.negativeScrollAdjustment+t.scrollLeft+e.containerWidth-e.contentWidth:n.left=t.scrollLeft,e.isScrollbarXUsingBottom?n.bottom=e.scrollbarXBottom-t.scrollTop:n.top=e.scrollbarXTop+t.scrollTop,s.css(e.scrollbarXRail,n);var r={top:t.scrollTop,height:e.railYHeight};e.isScrollbarYUsingRight?e.isRtl?r.right=e.contentWidth-(e.negativeScrollAdjustment+t.scrollLeft)-e.scrollbarYRight-e.scrollbarYOuterWidth:r.right=e.scrollbarYRight-t.scrollLeft:e.isRtl?r.left=e.negativeScrollAdjustment+t.scrollLeft+2*e.containerWidth-e.contentWidth-e.scrollbarYLeft-e.scrollbarYOuterWidth:r.left=e.scrollbarYLeft+t.scrollLeft,s.css(e.scrollbarYRail,r),s.css(e.scrollbarX,{left:e.scrollbarXLeft,width:e.scrollbarXWidth-e.railBorderXWidth}),s.css(e.scrollbarY,{top:e.scrollbarYTop,height:e.scrollbarYHeight-e.railBorderYWidth})}var l=t("../lib/helper"),i=t("../lib/class"),s=t("../lib/dom"),a=t("./instances"),c=t("./update-scroll");e.exports=function(t){var e=a.get(t);e.containerWidth=t.clientWidth,e.containerHeight=t.clientHeight,e.contentWidth=t.scrollWidth,e.contentHeight=t.scrollHeight;var n;t.contains(e.scrollbarXRail)||(n=s.queryChildren(t,".ps-scrollbar-x-rail"),n.length>0&&n.forEach(function(t){s.remove(t)}),s.appendTo(e.scrollbarXRail,t)),t.contains(e.scrollbarYRail)||(n=s.queryChildren(t,".ps-scrollbar-y-rail"),n.length>0&&n.forEach(function(t){s.remove(t)}),s.appendTo(e.scrollbarYRail,t)),!e.settings.suppressScrollX&&e.containerWidth+e.settings.scrollXMarginOffset<e.contentWidth?(e.scrollbarXActive=!0,e.railXWidth=e.containerWidth-e.railXMarginWidth,e.railXRatio=e.containerWidth/e.railXWidth,e.scrollbarXWidth=r(e,l.toInt(e.railXWidth*e.containerWidth/e.contentWidth)),e.scrollbarXLeft=l.toInt((e.negativeScrollAdjustment+t.scrollLeft)*(e.railXWidth-e.scrollbarXWidth)/(e.contentWidth-e.containerWidth))):e.scrollbarXActive=!1,!e.settings.suppressScrollY&&e.containerHeight+e.settings.scrollYMarginOffset<e.contentHeight?(e.scrollbarYActive=!0,e.railYHeight=e.containerHeight-e.railYMarginHeight,e.railYRatio=e.containerHeight/e.railYHeight,e.scrollbarYHeight=r(e,l.toInt(e.railYHeight*e.containerHeight/e.contentHeight)),e.scrollbarYTop=l.toInt(t.scrollTop*(e.railYHeight-e.scrollbarYHeight)/(e.contentHeight-e.containerHeight))):e.scrollbarYActive=!1,e.scrollbarXLeft>=e.railXWidth-e.scrollbarXWidth&&(e.scrollbarXLeft=e.railXWidth-e.scrollbarXWidth),e.scrollbarYTop>=e.railYHeight-e.scrollbarYHeight&&(e.scrollbarYTop=e.railYHeight-e.scrollbarYHeight),o(t,e),e.scrollbarXActive?i.add(t,"ps-active-x"):(i.remove(t,"ps-active-x"),e.scrollbarXWidth=0,e.scrollbarXLeft=0,c(t,"left",0)),e.scrollbarYActive?i.add(t,"ps-active-y"):(i.remove(t,"ps-active-y"),e.scrollbarYHeight=0,e.scrollbarYTop=0,c(t,"top",0))}},{"../lib/class":2,"../lib/dom":3,"../lib/helper":6,"./instances":18,"./update-scroll":20}],20:[function(t,e,n){"use strict";var r,o,l=t("./instances"),i=function(t){var e=document.createEvent("Event");return e.initEvent(t,!0,!0),e};e.exports=function(t,e,n){if("undefined"==typeof t)throw"You must provide an element to the update-scroll function";if("undefined"==typeof e)throw"You must provide an axis to the update-scroll function";if("undefined"==typeof n)throw"You must provide a value to the update-scroll function";"top"===e&&n<=0&&(t.scrollTop=n=0,t.dispatchEvent(i("ps-y-reach-start"))),"left"===e&&n<=0&&(t.scrollLeft=n=0,t.dispatchEvent(i("ps-x-reach-start")));var s=l.get(t);"top"===e&&n>=s.contentHeight-s.containerHeight&&(n=s.contentHeight-s.containerHeight,n-t.scrollTop<=1?n=t.scrollTop:t.scrollTop=n,t.dispatchEvent(i("ps-y-reach-end"))),"left"===e&&n>=s.contentWidth-s.containerWidth&&(n=s.contentWidth-s.containerWidth,n-t.scrollLeft<=1?n=t.scrollLeft:t.scrollLeft=n,t.dispatchEvent(i("ps-x-reach-end"))),r||(r=t.scrollTop),o||(o=t.scrollLeft),"top"===e&&n<r&&t.dispatchEvent(i("ps-scroll-up")),"top"===e&&n>r&&t.dispatchEvent(i("ps-scroll-down")),"left"===e&&n<o&&t.dispatchEvent(i("ps-scroll-left")),"left"===e&&n>o&&t.dispatchEvent(i("ps-scroll-right")),"top"===e&&(t.scrollTop=r=n,t.dispatchEvent(i("ps-scroll-y"))),"left"===e&&(t.scrollLeft=o=n,t.dispatchEvent(i("ps-scroll-x")))}},{"./instances":18}],21:[function(t,e,n){"use strict";var r=t("../lib/helper"),o=t("../lib/dom"),l=t("./instances"),i=t("./update-geometry"),s=t("./update-scroll");e.exports=function(t){var e=l.get(t);e&&(e.negativeScrollAdjustment=e.isNegativeScroll?t.scrollWidth-t.clientWidth:0,o.css(e.scrollbarXRail,"display","block"),o.css(e.scrollbarYRail,"display","block"),e.railXMarginWidth=r.toInt(o.css(e.scrollbarXRail,"marginLeft"))+r.toInt(o.css(e.scrollbarXRail,"marginRight")),e.railYMarginHeight=r.toInt(o.css(e.scrollbarYRail,"marginTop"))+r.toInt(o.css(e.scrollbarYRail,"marginBottom")),o.css(e.scrollbarXRail,"display","none"),o.css(e.scrollbarYRail,"display","none"),i(t),s(t,"top",t.scrollTop),s(t,"left",t.scrollLeft),o.css(e.scrollbarXRail,"display",""),o.css(e.scrollbarYRail,"display",""))}},{"../lib/dom":3,"../lib/helper":6,"./instances":18,"./update-geometry":19,"./update-scroll":20}]},{},[1]);
\ No newline at end of file
diff --git a/library/perfect-scrollbar/src/css/main.scss b/library/perfect-scrollbar/src/css/main.scss
new file mode 100644
index 000000000..ae1f655ad
--- /dev/null
+++ b/library/perfect-scrollbar/src/css/main.scss
@@ -0,0 +1,3 @@
+@import 'variables';
+@import 'mixins';
+@import 'themes';
diff --git a/library/perfect-scrollbar/src/css/mixins.scss b/library/perfect-scrollbar/src/css/mixins.scss
new file mode 100644
index 000000000..79d3d2c9d
--- /dev/null
+++ b/library/perfect-scrollbar/src/css/mixins.scss
@@ -0,0 +1,128 @@
+@mixin scrollbar-rail-default($theme) {
+  display: none;
+  position: absolute; /* please don't change 'position' */
+  opacity: map_get($theme, rail-default-opacity);
+  transition: background-color .2s linear, opacity .2s linear;
+}
+
+@mixin scrollbar-rail-hover($theme) {
+  background-color: map_get($theme, rail-hover-bg);
+  opacity: map_get($theme, rail-hover-opacity);
+}
+
+@mixin scrollbar-default($theme) {
+  position: absolute; /* please don't change 'position' */
+  background-color: map_get($theme, bar-container-hover-bg);
+  border-radius: map_get($theme, border-radius);
+  transition: background-color .2s linear, height .2s linear, width .2s ease-in-out,
+              border-radius .2s ease-in-out;
+}
+
+@mixin scrollbar-hover($theme) {
+  background-color: map_get($theme, bar-hover-bg);
+}
+
+@mixin in-scrolling($theme) {
+  &.ps-in-scrolling {
+    &.ps-x > .ps-scrollbar-x-rail {
+      @include scrollbar-rail-hover($theme);
+      > .ps-scrollbar-x {
+        @include scrollbar-hover($theme);
+        height: map_get($theme, scrollbar-x-hover-height);
+      }
+    }
+    &.ps-y > .ps-scrollbar-y-rail {
+      @include scrollbar-rail-hover($theme);
+      > .ps-scrollbar-y {
+        @include scrollbar-hover($theme);
+        width: map_get($theme, scrollbar-y-hover-width);
+      }
+    }
+  }
+}
+
+// Layout and theme mixin
+@mixin ps-container($theme) {
+  -ms-touch-action: auto;
+  touch-action: auto;
+  overflow: hidden !important;
+  -ms-overflow-style: none;
+
+  // Edge
+  @supports (-ms-overflow-style: none) {
+    overflow: auto !important;
+  }
+  // IE10+
+  @media screen and (-ms-high-contrast: active), (-ms-high-contrast: none) {
+    overflow: auto !important;
+  }
+
+  &.ps-active-x > .ps-scrollbar-x-rail,
+  &.ps-active-y > .ps-scrollbar-y-rail {
+    display: block;
+    background-color: map_get($theme, bar-bg);
+  }
+
+  @include in-scrolling($theme);
+
+  > .ps-scrollbar-x-rail {
+    @include scrollbar-rail-default($theme);
+    bottom: map_get($theme, scrollbar-x-rail-bottom); /* there must be 'bottom' for ps-scrollbar-x-rail */
+    height: map_get($theme, scrollbar-x-rail-height);
+
+    > .ps-scrollbar-x {
+      @include scrollbar-default($theme);
+      bottom: map_get($theme, scrollbar-x-bottom); /* there must be 'bottom' for ps-scrollbar-x */
+      height: map_get($theme, scrollbar-x-height);
+    }
+    &:hover,
+    &:active {
+      > .ps-scrollbar-x {
+        height: map_get($theme, scrollbar-x-hover-height);
+      }
+    }
+  }
+
+  > .ps-scrollbar-y-rail {
+    @include scrollbar-rail-default($theme);
+    right: map_get($theme, scrollbar-y-rail-right); /* there must be 'right' for ps-scrollbar-y-rail */
+    width: map_get($theme, scrollbar-y-rail-width);
+
+    > .ps-scrollbar-y {
+      @include scrollbar-default($theme);
+      right: map_get($theme, scrollbar-y-right); /* there must be 'right' for ps-scrollbar-y */
+      width: map_get($theme, scrollbar-y-width);
+    }
+    &:hover,
+    &:active {
+      > .ps-scrollbar-y {
+        width: map_get($theme, scrollbar-y-hover-width);
+      }
+    }
+  }
+
+  &:hover {
+    @include in-scrolling($theme);
+
+    > .ps-scrollbar-x-rail,
+    > .ps-scrollbar-y-rail {
+      opacity: map_get($theme, rail-container-hover-opacity);
+    }
+
+    > .ps-scrollbar-x-rail:hover {
+      @include scrollbar-rail-hover($theme);
+
+      > .ps-scrollbar-x {
+        @include scrollbar-hover($theme);
+      }
+    }
+
+    > .ps-scrollbar-y-rail:hover {
+      @include scrollbar-rail-hover($theme);
+
+      > .ps-scrollbar-y {
+        @include scrollbar-hover($theme);
+      }
+    }
+  }
+}
diff --git a/library/perfect-scrollbar/src/css/themes.scss b/library/perfect-scrollbar/src/css/themes.scss
new file mode 100644
index 000000000..bf7729a7d
--- /dev/null
+++ b/library/perfect-scrollbar/src/css/themes.scss
@@ -0,0 +1,25 @@
+$ps-theme-default: (
+  border-radius: $ps-border-radius,
+  rail-default-opacity: $ps-rail-default-opacity,
+  rail-container-hover-opacity: $ps-rail-container-hover-opacity,
+  rail-hover-opacity: $ps-rail-hover-opacity,
+  bar-bg: $ps-bar-bg,
+  bar-container-hover-bg: $ps-bar-container-hover-bg,
+  bar-hover-bg: $ps-bar-hover-bg,
+  rail-hover-bg: $ps-rail-hover-bg,
+  scrollbar-x-rail-bottom: $ps-scrollbar-x-rail-bottom,
+  scrollbar-x-rail-height: $ps-scrollbar-x-rail-height,
+  scrollbar-x-bottom: $ps-scrollbar-x-bottom,
+  scrollbar-x-height: $ps-scrollbar-x-height,
+  scrollbar-x-hover-height: $ps-scrollbar-x-hover-height,
+  scrollbar-y-rail-right: $ps-scrollbar-y-rail-right,
+  scrollbar-y-rail-width: $ps-scrollbar-y-rail-width,
+  scrollbar-y-right: $ps-scrollbar-y-right,
+  scrollbar-y-width: $ps-scrollbar-y-width,
+  scrollbar-y-hover-width: $ps-scrollbar-y-hover-width,
+);
+
+// Default theme
+.ps-container {
+  @include ps-container($ps-theme-default);
+}
diff --git a/library/perfect-scrollbar/src/css/variables.scss b/library/perfect-scrollbar/src/css/variables.scss
new file mode 100644
index 000000000..7454fb0b0
--- /dev/null
+++ b/library/perfect-scrollbar/src/css/variables.scss
@@ -0,0 +1,24 @@
+// Colors
+$ps-border-radius: 6px !default;
+
+$ps-rail-default-opacity: 0 !default;
+$ps-rail-container-hover-opacity: 0.6 !default;
+$ps-rail-hover-opacity: 0.9 !default;
+
+$ps-bar-bg: transparent !default;
+$ps-bar-container-hover-bg: #aaa !default;
+$ps-bar-hover-bg: #999 !default;
+$ps-rail-hover-bg: #eee !default;
+
+// Sizes
+$ps-scrollbar-x-rail-bottom: 0px !default;
+$ps-scrollbar-x-rail-height: 15px !default;
+$ps-scrollbar-x-bottom: 2px !default;
+$ps-scrollbar-x-height: 6px !default;
+$ps-scrollbar-x-hover-height: 11px !default;
+
+$ps-scrollbar-y-rail-right: 0 !default;
+$ps-scrollbar-y-rail-width: 15px !default;
+$ps-scrollbar-y-right: 2px !default;
+$ps-scrollbar-y-width: 6px !default;
+$ps-scrollbar-y-hover-width: 11px !default;
diff --git a/library/perfect-scrollbar/src/js/adaptor/global.js b/library/perfect-scrollbar/src/js/adaptor/global.js
new file mode 100644
index 000000000..0438e361e
--- /dev/null
+++ b/library/perfect-scrollbar/src/js/adaptor/global.js
@@ -0,0 +1,14 @@
+'use strict';
+
+var ps = require('../main');
+
+if (typeof define === 'function' && define.amd) {
+  // AMD
+  define(ps);
+} else {
+  // Add to a global object.
+  window.PerfectScrollbar = ps;
+  if (typeof window.Ps === 'undefined') {
+    window.Ps = ps;
+  }
+}
diff --git a/library/perfect-scrollbar/src/js/adaptor/jquery.js b/library/perfect-scrollbar/src/js/adaptor/jquery.js
new file mode 100644
index 000000000..ef55e093e
--- /dev/null
+++ b/library/perfect-scrollbar/src/js/adaptor/jquery.js
@@ -0,0 +1,41 @@
+'use strict';
+
+var ps = require('../main');
+var psInstances = require('../plugin/instances');
+
+function mountJQuery(jQuery) {
+  jQuery.fn.perfectScrollbar = function (settingOrCommand) {
+    return this.each(function () {
+      if (typeof settingOrCommand === 'object' ||
+          typeof settingOrCommand === 'undefined') {
+        // If it's an object or none, initialize.
+        var settings = settingOrCommand;
+
+        if (!psInstances.get(this)) {
+          ps.initialize(this, settings);
+        }
+      } else {
+        // Unless, it may be a command.
+        var command = settingOrCommand;
+
+        if (command === 'update') {
+          ps.update(this);
+        } else if (command === 'destroy') {
+          ps.destroy(this);
+        }
+      }
+    });
+  };
+}
+
+if (typeof define === 'function' && define.amd) {
+  // AMD. Register as an anonymous module.
+  define(['jquery'], mountJQuery);
+} else {
+  var jq = window.jQuery ? window.jQuery : window.$;
+  if (typeof jq !== 'undefined') {
+    mountJQuery(jq);
+  }
+}
+
+module.exports = mountJQuery;
diff --git a/library/perfect-scrollbar/src/js/lib/class.js b/library/perfect-scrollbar/src/js/lib/class.js
new file mode 100644
index 000000000..951b10bb2
--- /dev/null
+++ b/library/perfect-scrollbar/src/js/lib/class.js
@@ -0,0 +1,42 @@
+'use strict';
+
+function oldAdd(element, className) {
+  var classes = element.className.split(' ');
+  if (classes.indexOf(className) < 0) {
+    classes.push(className);
+  }
+  element.className = classes.join(' ');
+}
+
+function oldRemove(element, className) {
+  var classes = element.className.split(' ');
+  var idx = classes.indexOf(className);
+  if (idx >= 0) {
+    classes.splice(idx, 1);
+  }
+  element.className = classes.join(' ');
+}
+
+exports.add = function (element, className) {
+  if (element.classList) {
+    element.classList.add(className);
+  } else {
+    oldAdd(element, className);
+  }
+};
+
+exports.remove = function (element, className) {
+  if (element.classList) {
+    element.classList.remove(className);
+  } else {
+    oldRemove(element, className);
+  }
+};
+
+exports.list = function (element) {
+  if (element.classList) {
+    return Array.prototype.slice.apply(element.classList);
+  } else {
+    return element.className.split(' ');
+  }
+};
diff --git a/library/perfect-scrollbar/src/js/lib/dom.js b/library/perfect-scrollbar/src/js/lib/dom.js
new file mode 100644
index 000000000..b929a17ed
--- /dev/null
+++ b/library/perfect-scrollbar/src/js/lib/dom.js
@@ -0,0 +1,84 @@
+'use strict';
+
+var DOM = {};
+
+DOM.e = function (tagName, className) {
+  var element = document.createElement(tagName);
+  element.className = className;
+  return element;
+};
+
+DOM.appendTo = function (child, parent) {
+  parent.appendChild(child);
+  return child;
+};
+
+function cssGet(element, styleName) {
+  return window.getComputedStyle(element)[styleName];
+}
+
+function cssSet(element, styleName, styleValue) {
+  if (typeof styleValue === 'number') {
+    styleValue = styleValue.toString() + 'px';
+  }
+  element.style[styleName] = styleValue;
+  return element;
+}
+
+function cssMultiSet(element, obj) {
+  for (var key in obj) {
+    var val = obj[key];
+    if (typeof val === 'number') {
+      val = val.toString() + 'px';
+    }
+    element.style[key] = val;
+  }
+  return element;
+}
+
+DOM.css = function (element, styleNameOrObject, styleValue) {
+  if (typeof styleNameOrObject === 'object') {
+    // multiple set with object
+    return cssMultiSet(element, styleNameOrObject);
+  } else {
+    if (typeof styleValue === 'undefined') {
+      return cssGet(element, styleNameOrObject);
+    } else {
+      return cssSet(element, styleNameOrObject, styleValue);
+    }
+  }
+};
+
+DOM.matches = function (element, query) {
+  if (typeof element.matches !== 'undefined') {
+    return element.matches(query);
+  } else {
+    if (typeof element.matchesSelector !== 'undefined') {
+      return element.matchesSelector(query);
+    } else if (typeof element.webkitMatchesSelector !== 'undefined') {
+      return element.webkitMatchesSelector(query);
+    } else if (typeof element.mozMatchesSelector !== 'undefined') {
+      return element.mozMatchesSelector(query);
+    } else if (typeof element.msMatchesSelector !== 'undefined') {
+      return element.msMatchesSelector(query);
+    }
+  }
+};
+
+DOM.remove = function (element) {
+  if (typeof element.remove !== 'undefined') {
+    element.remove();
+  } else {
+    if (element.parentNode) {
+      element.parentNode.removeChild(element);
+    }
+  }
+};
+
+DOM.queryChildren = function (element, selector) {
+  return Array.prototype.filter.call(element.childNodes, function (child) {
+    return DOM.matches(child, selector);
+  });
+};
+
+module.exports = DOM;
diff --git a/library/perfect-scrollbar/src/js/lib/event-manager.js b/library/perfect-scrollbar/src/js/lib/event-manager.js
new file mode 100644
index 000000000..d148ad8fe
--- /dev/null
+++ b/library/perfect-scrollbar/src/js/lib/event-manager.js
@@ -0,0 +1,71 @@
+'use strict';
+
+var EventElement = function (element) {
+  this.element = element;
+  this.events = {};
+};
+
+EventElement.prototype.bind = function (eventName, handler) {
+  if (typeof this.events[eventName] === 'undefined') {
+    this.events[eventName] = [];
+  }
+  this.events[eventName].push(handler);
+  this.element.addEventListener(eventName, handler, false);
+};
+
+EventElement.prototype.unbind = function (eventName, handler) {
+  var isHandlerProvided = (typeof handler !== 'undefined');
+  this.events[eventName] = this.events[eventName].filter(function (hdlr) {
+    if (isHandlerProvided && hdlr !== handler) {
+      return true;
+    }
+    this.element.removeEventListener(eventName, hdlr, false);
+    return false;
+  }, this);
+};
+
+EventElement.prototype.unbindAll = function () {
+  for (var name in this.events) {
+    this.unbind(name);
+  }
+};
+
+var EventManager = function () {
+  this.eventElements = [];
+};
+
+EventManager.prototype.eventElement = function (element) {
+  var ee = this.eventElements.filter(function (eventElement) {
+    return eventElement.element === element;
+  })[0];
+  if (typeof ee === 'undefined') {
+    ee = new EventElement(element);
+    this.eventElements.push(ee);
+  }
+  return ee;
+};
+
+EventManager.prototype.bind = function (element, eventName, handler) {
+  this.eventElement(element).bind(eventName, handler);
+};
+
+EventManager.prototype.unbind = function (element, eventName, handler) {
+  this.eventElement(element).unbind(eventName, handler);
+};
+
+EventManager.prototype.unbindAll = function () {
+  for (var i = 0; i < this.eventElements.length; i++) {
+    this.eventElements[i].unbindAll();
+  }
+};
+
+EventManager.prototype.once = function (element, eventName, handler) {
+  var ee = this.eventElement(element);
+  var onceHandler = function (e) {
+    ee.unbind(eventName, onceHandler);
+    handler(e);
+  };
+  ee.bind(eventName, onceHandler);
+};
+
+module.exports = EventManager;
diff --git a/library/perfect-scrollbar/src/js/lib/guid.js b/library/perfect-scrollbar/src/js/lib/guid.js
new file mode 100644
index 000000000..84c7237eb
--- /dev/null
+++ b/library/perfect-scrollbar/src/js/lib/guid.js
@@ -0,0 +1,13 @@
+'use strict';
+
+module.exports = (function () {
+  function s4() {
+    return Math.floor((1 + Math.random()) * 0x10000)
+               .toString(16)
+               .substring(1);
+  }
+  return function () {
+    return s4() + s4() + '-' + s4() + '-' + s4() + '-' +
+           s4() + '-' + s4() + s4() + s4();
+  };
+})();
diff --git a/library/perfect-scrollbar/src/js/lib/helper.js b/library/perfect-scrollbar/src/js/lib/helper.js
new file mode 100644
index 000000000..a72f2e59f
--- /dev/null
+++ b/library/perfect-scrollbar/src/js/lib/helper.js
@@ -0,0 +1,83 @@
+'use strict';
+
+var cls = require('./class');
+var dom = require('./dom');
+
+var toInt = exports.toInt = function (x) {
+  return parseInt(x, 10) || 0;
+};
+
+var clone = exports.clone = function (obj) {
+  if (!obj) {
+    return null;
+  } else if (obj.constructor === Array) {
+    return obj.map(clone);
+  } else if (typeof obj === 'object') {
+    var result = {};
+    for (var key in obj) {
+      result[key] = clone(obj[key]);
+    }
+    return result;
+  } else {
+    return obj;
+  }
+};
+
+exports.extend = function (original, source) {
+  var result = clone(original);
+  for (var key in source) {
+    result[key] = clone(source[key]);
+  }
+  return result;
+};
+
+exports.isEditable = function (el) {
+  return dom.matches(el, "input,[contenteditable]") ||
+         dom.matches(el, "select,[contenteditable]") ||
+         dom.matches(el, "textarea,[contenteditable]") ||
+         dom.matches(el, "button,[contenteditable]");
+};
+
+exports.removePsClasses = function (element) {
+  var clsList = cls.list(element);
+  for (var i = 0; i < clsList.length; i++) {
+    var className = clsList[i];
+    if (className.indexOf('ps-') === 0) {
+      cls.remove(element, className);
+    }
+  }
+};
+
+exports.outerWidth = function (element) {
+  return toInt(dom.css(element, 'width')) +
+         toInt(dom.css(element, 'paddingLeft')) +
+         toInt(dom.css(element, 'paddingRight')) +
+         toInt(dom.css(element, 'borderLeftWidth')) +
+         toInt(dom.css(element, 'borderRightWidth'));
+};
+
+exports.startScrolling = function (element, axis) {
+  cls.add(element, 'ps-in-scrolling');
+  if (typeof axis !== 'undefined') {
+    cls.add(element, 'ps-' + axis);
+  } else {
+    cls.add(element, 'ps-x');
+    cls.add(element, 'ps-y');
+  }
+};
+
+exports.stopScrolling = function (element, axis) {
+  cls.remove(element, 'ps-in-scrolling');
+  if (typeof axis !== 'undefined') {
+    cls.remove(element, 'ps-' + axis);
+  } else {
+    cls.remove(element, 'ps-x');
+    cls.remove(element, 'ps-y');
+  }
+};
+
+exports.env = {
+  isWebKit: 'WebkitAppearance' in document.documentElement.style,
+  supportsTouch: (('ontouchstart' in window) || window.DocumentTouch && document instanceof window.DocumentTouch),
+  supportsIePointer: window.navigator.msMaxTouchPoints !== null
+};
diff --git a/library/perfect-scrollbar/src/js/main.js b/library/perfect-scrollbar/src/js/main.js
new file mode 100644
index 000000000..06b1c2be7
--- /dev/null
+++ b/library/perfect-scrollbar/src/js/main.js
@@ -0,0 +1,11 @@
+'use strict';
+
+var destroy = require('./plugin/destroy');
+var initialize = require('./plugin/initialize');
+var update = require('./plugin/update');
+
+module.exports = {
+  initialize: initialize,
+  update: update,
+  destroy: destroy
+};
diff --git a/library/perfect-scrollbar/src/js/plugin/default-setting.js b/library/perfect-scrollbar/src/js/plugin/default-setting.js
new file mode 100644
index 000000000..b3f2ddd8b
--- /dev/null
+++ b/library/perfect-scrollbar/src/js/plugin/default-setting.js
@@ -0,0 +1,16 @@
+'use strict';
+
+module.exports = {
+  handlers: ['click-rail', 'drag-scrollbar', 'keyboard', 'wheel', 'touch'],
+  maxScrollbarLength: null,
+  minScrollbarLength: null,
+  scrollXMarginOffset: 0,
+  scrollYMarginOffset: 0,
+  suppressScrollX: false,
+  suppressScrollY: false,
+  swipePropagation: true,
+  useBothWheelAxes: false,
+  wheelPropagation: false,
+  wheelSpeed: 1,
+  theme: 'default'
+};
diff --git a/library/perfect-scrollbar/src/js/plugin/destroy.js b/library/perfect-scrollbar/src/js/plugin/destroy.js
new file mode 100644
index 000000000..97a83e0bc
--- /dev/null
+++ b/library/perfect-scrollbar/src/js/plugin/destroy.js
@@ -0,0 +1,22 @@
+'use strict';
+
+var _ = require('../lib/helper');
+var dom = require('../lib/dom');
+var instances = require('./instances');
+
+module.exports = function (element) {
+  var i = instances.get(element);
+
+  if (!i) {
+    return;
+  }
+
+  i.event.unbindAll();
+  dom.remove(i.scrollbarX);
+  dom.remove(i.scrollbarY);
+  dom.remove(i.scrollbarXRail);
+  dom.remove(i.scrollbarYRail);
+  _.removePsClasses(element);
+
+  instances.remove(element);
+};
diff --git a/library/perfect-scrollbar/src/js/plugin/handler/click-rail.js b/library/perfect-scrollbar/src/js/plugin/handler/click-rail.js
new file mode 100644
index 000000000..bbd15218e
--- /dev/null
+++ b/library/perfect-scrollbar/src/js/plugin/handler/click-rail.js
@@ -0,0 +1,39 @@
+'use strict';
+
+var instances = require('../instances');
+var updateGeometry = require('../update-geometry');
+var updateScroll = require('../update-scroll');
+
+function bindClickRailHandler(element, i) {
+  function pageOffset(el) {
+    return el.getBoundingClientRect();
+  }
+  var stopPropagation = function (e) { e.stopPropagation(); };
+
+  i.event.bind(i.scrollbarY, 'click', stopPropagation);
+  i.event.bind(i.scrollbarYRail, 'click', function (e) {
+    var positionTop = e.pageY - window.pageYOffset - pageOffset(i.scrollbarYRail).top;
+    var direction = positionTop > i.scrollbarYTop ? 1 : -1;
+
+    updateScroll(element, 'top', element.scrollTop + direction * i.containerHeight);
+    updateGeometry(element);
+
+    e.stopPropagation();
+  });
+
+  i.event.bind(i.scrollbarX, 'click', stopPropagation);
+  i.event.bind(i.scrollbarXRail, 'click', function (e) {
+    var positionLeft = e.pageX - window.pageXOffset - pageOffset(i.scrollbarXRail).left;
+    var direction = positionLeft > i.scrollbarXLeft ? 1 : -1;
+
+    updateScroll(element, 'left', element.scrollLeft + direction * i.containerWidth);
+    updateGeometry(element);
+
+    e.stopPropagation();
+  });
+}
+
+module.exports = function (element) {
+  var i = instances.get(element);
+  bindClickRailHandler(element, i);
+};
diff --git a/library/perfect-scrollbar/src/js/plugin/handler/drag-scrollbar.js b/library/perfect-scrollbar/src/js/plugin/handler/drag-scrollbar.js
new file mode 100644
index 000000000..fc99d0083
--- /dev/null
+++ b/library/perfect-scrollbar/src/js/plugin/handler/drag-scrollbar.js
@@ -0,0 +1,103 @@
+'use strict';
+
+var _ = require('../../lib/helper');
+var dom = require('../../lib/dom');
+var instances = require('../instances');
+var updateGeometry = require('../update-geometry');
+var updateScroll = require('../update-scroll');
+
+function bindMouseScrollXHandler(element, i) {
+  var currentLeft = null;
+  var currentPageX = null;
+
+  function updateScrollLeft(deltaX) {
+    var newLeft = currentLeft + (deltaX * i.railXRatio);
+    var maxLeft = Math.max(0, i.scrollbarXRail.getBoundingClientRect().left) + (i.railXRatio * (i.railXWidth - i.scrollbarXWidth));
+
+    if (newLeft < 0) {
+      i.scrollbarXLeft = 0;
+    } else if (newLeft > maxLeft) {
+      i.scrollbarXLeft = maxLeft;
+    } else {
+      i.scrollbarXLeft = newLeft;
+    }
+
+    var scrollLeft = _.toInt(i.scrollbarXLeft * (i.contentWidth - i.containerWidth) / (i.containerWidth - (i.railXRatio * i.scrollbarXWidth))) - i.negativeScrollAdjustment;
+    updateScroll(element, 'left', scrollLeft);
+  }
+
+  var mouseMoveHandler = function (e) {
+    updateScrollLeft(e.pageX - currentPageX);
+    updateGeometry(element);
+    e.stopPropagation();
+    e.preventDefault();
+  };
+
+  var mouseUpHandler = function () {
+    _.stopScrolling(element, 'x');
+    i.event.unbind(i.ownerDocument, 'mousemove', mouseMoveHandler);
+  };
+
+  i.event.bind(i.scrollbarX, 'mousedown', function (e) {
+    currentPageX = e.pageX;
+    currentLeft = _.toInt(dom.css(i.scrollbarX, 'left')) * i.railXRatio;
+    _.startScrolling(element, 'x');
+
+    i.event.bind(i.ownerDocument, 'mousemove', mouseMoveHandler);
+    i.event.once(i.ownerDocument, 'mouseup', mouseUpHandler);
+
+    e.stopPropagation();
+    e.preventDefault();
+  });
+}
+
+function bindMouseScrollYHandler(element, i) {
+  var currentTop = null;
+  var currentPageY = null;
+
+  function updateScrollTop(deltaY) {
+    var newTop = currentTop + (deltaY * i.railYRatio);
+    var maxTop = Math.max(0, i.scrollbarYRail.getBoundingClientRect().top) + (i.railYRatio * (i.railYHeight - i.scrollbarYHeight));
+
+    if (newTop < 0) {
+      i.scrollbarYTop = 0;
+    } else if (newTop > maxTop) {
+      i.scrollbarYTop = maxTop;
+    } else {
+      i.scrollbarYTop = newTop;
+    }
+
+    var scrollTop = _.toInt(i.scrollbarYTop * (i.contentHeight - i.containerHeight) / (i.containerHeight - (i.railYRatio * i.scrollbarYHeight)));
+    updateScroll(element, 'top', scrollTop);
+  }
+
+  var mouseMoveHandler = function (e) {
+    updateScrollTop(e.pageY - currentPageY);
+    updateGeometry(element);
+    e.stopPropagation();
+    e.preventDefault();
+  };
+
+  var mouseUpHandler = function () {
+    _.stopScrolling(element, 'y');
+    i.event.unbind(i.ownerDocument, 'mousemove', mouseMoveHandler);
+  };
+
+  i.event.bind(i.scrollbarY, 'mousedown', function (e) {
+    currentPageY = e.pageY;
+    currentTop = _.toInt(dom.css(i.scrollbarY, 'top')) * i.railYRatio;
+    _.startScrolling(element, 'y');
+
+    i.event.bind(i.ownerDocument, 'mousemove', mouseMoveHandler);
+    i.event.once(i.ownerDocument, 'mouseup', mouseUpHandler);
+
+    e.stopPropagation();
+    e.preventDefault();
+  });
+}
+
+module.exports = function (element) {
+  var i = instances.get(element);
+  bindMouseScrollXHandler(element, i);
+  bindMouseScrollYHandler(element, i);
+};
diff --git a/library/perfect-scrollbar/src/js/plugin/handler/keyboard.js b/library/perfect-scrollbar/src/js/plugin/handler/keyboard.js
new file mode 100644
index 000000000..b23a3bdb1
--- /dev/null
+++ b/library/perfect-scrollbar/src/js/plugin/handler/keyboard.js
@@ -0,0 +1,154 @@
+'use strict';
+
+var _ = require('../../lib/helper');
+var dom = require('../../lib/dom');
+var instances = require('../instances');
+var updateGeometry = require('../update-geometry');
+var updateScroll = require('../update-scroll');
+
+function bindKeyboardHandler(element, i) {
+  var hovered = false;
+  i.event.bind(element, 'mouseenter', function () {
+    hovered = true;
+  });
+  i.event.bind(element, 'mouseleave', function () {
+    hovered = false;
+  });
+
+  var shouldPrevent = false;
+  function shouldPreventDefault(deltaX, deltaY) {
+    var scrollTop = element.scrollTop;
+    if (deltaX === 0) {
+      if (!i.scrollbarYActive) {
+        return false;
+      }
+      if ((scrollTop === 0 && deltaY > 0) || (scrollTop >= i.contentHeight - i.containerHeight && deltaY < 0)) {
+        return !i.settings.wheelPropagation;
+      }
+    }
+
+    var scrollLeft = element.scrollLeft;
+    if (deltaY === 0) {
+      if (!i.scrollbarXActive) {
+        return false;
+      }
+      if ((scrollLeft === 0 && deltaX < 0) || (scrollLeft >= i.contentWidth - i.containerWidth && deltaX > 0)) {
+        return !i.settings.wheelPropagation;
+      }
+    }
+    return true;
+  }
+
+  i.event.bind(i.ownerDocument, 'keydown', function (e) {
+    if ((e.isDefaultPrevented && e.isDefaultPrevented()) || e.defaultPrevented) {
+      return;
+    }
+
+    var focused = dom.matches(i.scrollbarX, ':focus') ||
+                  dom.matches(i.scrollbarY, ':focus');
+
+    if (!hovered && !focused) {
+      return;
+    }
+
+    var activeElement = document.activeElement ? document.activeElement : i.ownerDocument.activeElement;
+    if (activeElement) {
+      if (activeElement.tagName === 'IFRAME') {
+        activeElement = activeElement.contentDocument.activeElement;
+      } else {
+        // go deeper if element is a webcomponent
+        while (activeElement.shadowRoot) {
+          activeElement = activeElement.shadowRoot.activeElement;
+        }
+      }
+      if (_.isEditable(activeElement)) {
+        return;
+      }
+    }
+
+    var deltaX = 0;
+    var deltaY = 0;
+
+    switch (e.which) {
+    case 37: // left
+      if (e.metaKey) {
+        deltaX = -i.contentWidth;
+      } else if (e.altKey) {
+        deltaX = -i.containerWidth;
+      } else {
+        deltaX = -30;
+      }
+      break;
+    case 38: // up
+      if (e.metaKey) {
+        deltaY = i.contentHeight;
+      } else if (e.altKey) {
+        deltaY = i.containerHeight;
+      } else {
+        deltaY = 30;
+      }
+      break;
+    case 39: // right
+      if (e.metaKey) {
+        deltaX = i.contentWidth;
+      } else if (e.altKey) {
+        deltaX = i.containerWidth;
+      } else {
+        deltaX = 30;
+      }
+      break;
+    case 40: // down
+      if (e.metaKey) {
+        deltaY = -i.contentHeight;
+      } else if (e.altKey) {
+        deltaY = -i.containerHeight;
+      } else {
+        deltaY = -30;
+      }
+      break;
+    case 33: // page up
+      deltaY = 90;
+      break;
+    case 32: // space bar
+      if (e.shiftKey) {
+        deltaY = 90;
+      } else {
+        deltaY = -90;
+      }
+      break;
+    case 34: // page down
+      deltaY = -90;
+      break;
+    case 35: // end
+      if (e.ctrlKey) {
+        deltaY = -i.contentHeight;
+      } else {
+        deltaY = -i.containerHeight;
+      }
+      break;
+    case 36: // home
+      if (e.ctrlKey) {
+        deltaY = element.scrollTop;
+      } else {
+        deltaY = i.containerHeight;
+      }
+      break;
+    default:
+      return;
+    }
+
+    updateScroll(element, 'top', element.scrollTop - deltaY);
+    updateScroll(element, 'left', element.scrollLeft + deltaX);
+    updateGeometry(element);
+
+    shouldPrevent = shouldPreventDefault(deltaX, deltaY);
+    if (shouldPrevent) {
+      e.preventDefault();
+    }
+  });
+}
+
+module.exports = function (element) {
+  var i = instances.get(element);
+  bindKeyboardHandler(element, i);
+};
diff --git a/library/perfect-scrollbar/src/js/plugin/handler/mouse-wheel.js b/library/perfect-scrollbar/src/js/plugin/handler/mouse-wheel.js
new file mode 100644
index 000000000..9e08f303b
--- /dev/null
+++ b/library/perfect-scrollbar/src/js/plugin/handler/mouse-wheel.js
@@ -0,0 +1,141 @@
+'use strict';
+
+var instances = require('../instances');
+var updateGeometry = require('../update-geometry');
+var updateScroll = require('../update-scroll');
+
+function bindMouseWheelHandler(element, i) {
+  var shouldPrevent = false;
+
+  function shouldPreventDefault(deltaX, deltaY) {
+    var scrollTop = element.scrollTop;
+    if (deltaX === 0) {
+      if (!i.scrollbarYActive) {
+        return false;
+      }
+      if ((scrollTop === 0 && deltaY > 0) || (scrollTop >= i.contentHeight - i.containerHeight && deltaY < 0)) {
+        return !i.settings.wheelPropagation;
+      }
+    }
+
+    var scrollLeft = element.scrollLeft;
+    if (deltaY === 0) {
+      if (!i.scrollbarXActive) {
+        return false;
+      }
+      if ((scrollLeft === 0 && deltaX < 0) || (scrollLeft >= i.contentWidth - i.containerWidth && deltaX > 0)) {
+        return !i.settings.wheelPropagation;
+      }
+    }
+    return true;
+  }
+
+  function getDeltaFromEvent(e) {
+    var deltaX = e.deltaX;
+    var deltaY = -1 * e.deltaY;
+
+    if (typeof deltaX === "undefined" || typeof deltaY === "undefined") {
+      // OS X Safari
+      deltaX = -1 * e.wheelDeltaX / 6;
+      deltaY = e.wheelDeltaY / 6;
+    }
+
+    if (e.deltaMode && e.deltaMode === 1) {
+      // Firefox in deltaMode 1: Line scrolling
+      deltaX *= 10;
+      deltaY *= 10;
+    }
+
+    if (deltaX !== deltaX && deltaY !== deltaY/* NaN checks */) {
+      // IE in some mouse drivers
+      deltaX = 0;
+      deltaY = e.wheelDelta;
+    }
+
+    if (e.shiftKey) {
+      // reverse axis with shift key
+      return [-deltaY, -deltaX];
+    }
+    return [deltaX, deltaY];
+  }
+
+  function shouldBeConsumedByChild(deltaX, deltaY) {
+    var child = element.querySelector('textarea:hover, select[multiple]:hover, .ps-child:hover');
+    if (child) {
+      if (!window.getComputedStyle(child).overflow.match(/(scroll|auto)/)) {
+        // if not scrollable
+        return false;
+      }
+
+      var maxScrollTop = child.scrollHeight - child.clientHeight;
+      if (maxScrollTop > 0) {
+        if (!(child.scrollTop === 0 && deltaY > 0) && !(child.scrollTop === maxScrollTop && deltaY < 0)) {
+          return true;
+        }
+      }
+      var maxScrollLeft = child.scrollLeft - child.clientWidth;
+      if (maxScrollLeft > 0) {
+        if (!(child.scrollLeft === 0 && deltaX < 0) && !(child.scrollLeft === maxScrollLeft && deltaX > 0)) {
+          return true;
+        }
+      }
+    }
+    return false;
+  }
+
+  function mousewheelHandler(e) {
+    var delta = getDeltaFromEvent(e);
+
+    var deltaX = delta[0];
+    var deltaY = delta[1];
+
+    if (shouldBeConsumedByChild(deltaX, deltaY)) {
+      return;
+    }
+
+    shouldPrevent = false;
+    if (!i.settings.useBothWheelAxes) {
+      // deltaX will only be used for horizontal scrolling and deltaY will
+      // only be used for vertical scrolling - this is the default
+      updateScroll(element, 'top', element.scrollTop - (deltaY * i.settings.wheelSpeed));
+      updateScroll(element, 'left', element.scrollLeft + (deltaX * i.settings.wheelSpeed));
+    } else if (i.scrollbarYActive && !i.scrollbarXActive) {
+      // only vertical scrollbar is active and useBothWheelAxes option is
+      // active, so let's scroll vertical bar using both mouse wheel axes
+      if (deltaY) {
+        updateScroll(element, 'top', element.scrollTop - (deltaY * i.settings.wheelSpeed));
+      } else {
+        updateScroll(element, 'top', element.scrollTop + (deltaX * i.settings.wheelSpeed));
+      }
+      shouldPrevent = true;
+    } else if (i.scrollbarXActive && !i.scrollbarYActive) {
+      // useBothWheelAxes and only horizontal bar is active, so use both
+      // wheel axes for horizontal bar
+      if (deltaX) {
+        updateScroll(element, 'left', element.scrollLeft + (deltaX * i.settings.wheelSpeed));
+      } else {
+        updateScroll(element, 'left', element.scrollLeft - (deltaY * i.settings.wheelSpeed));
+      }
+      shouldPrevent = true;
+    }
+
+    updateGeometry(element);
+
+    shouldPrevent = (shouldPrevent || shouldPreventDefault(deltaX, deltaY));
+    if (shouldPrevent) {
+      e.stopPropagation();
+      e.preventDefault();
+    }
+  }
+
+  if (typeof window.onwheel !== "undefined") {
+    i.event.bind(element, 'wheel', mousewheelHandler);
+  } else if (typeof window.onmousewheel !== "undefined") {
+    i.event.bind(element, 'mousewheel', mousewheelHandler);
+  }
+}
+
+module.exports = function (element) {
+  var i = instances.get(element);
+  bindMouseWheelHandler(element, i);
+};
diff --git a/library/perfect-scrollbar/src/js/plugin/handler/native-scroll.js b/library/perfect-scrollbar/src/js/plugin/handler/native-scroll.js
new file mode 100644
index 000000000..8664b23a3
--- /dev/null
+++ b/library/perfect-scrollbar/src/js/plugin/handler/native-scroll.js
@@ -0,0 +1,15 @@
+'use strict';
+
+var instances = require('../instances');
+var updateGeometry = require('../update-geometry');
+
+function bindNativeScrollHandler(element, i) {
+  i.event.bind(element, 'scroll', function () {
+    updateGeometry(element);
+  });
+}
+
+module.exports = function (element) {
+  var i = instances.get(element);
+  bindNativeScrollHandler(element, i);
+};
diff --git a/library/perfect-scrollbar/src/js/plugin/handler/selection.js b/library/perfect-scrollbar/src/js/plugin/handler/selection.js
new file mode 100644
index 000000000..705420f47
--- /dev/null
+++ b/library/perfect-scrollbar/src/js/plugin/handler/selection.js
@@ -0,0 +1,115 @@
+'use strict';
+
+var _ = require('../../lib/helper');
+var instances = require('../instances');
+var updateGeometry = require('../update-geometry');
+var updateScroll = require('../update-scroll');
+
+function bindSelectionHandler(element, i) {
+  function getRangeNode() {
+    var selection = window.getSelection ? window.getSelection() :
+                    document.getSelection ? document.getSelection() : '';
+    if (selection.toString().length === 0) {
+      return null;
+    } else {
+      return selection.getRangeAt(0).commonAncestorContainer;
+    }
+  }
+
+  var scrollingLoop = null;
+  var scrollDiff = {top: 0, left: 0};
+  function startScrolling() {
+    if (!scrollingLoop) {
+      scrollingLoop = setInterval(function () {
+        if (!instances.get(element)) {
+          clearInterval(scrollingLoop);
+          return;
+        }
+
+        updateScroll(element, 'top', element.scrollTop + scrollDiff.top);
+        updateScroll(element, 'left', element.scrollLeft + scrollDiff.left);
+        updateGeometry(element);
+      }, 50); // every .1 sec
+    }
+  }
+  function stopScrolling() {
+    if (scrollingLoop) {
+      clearInterval(scrollingLoop);
+      scrollingLoop = null;
+    }
+    _.stopScrolling(element);
+  }
+
+  var isSelected = false;
+  i.event.bind(i.ownerDocument, 'selectionchange', function () {
+    if (element.contains(getRangeNode())) {
+      isSelected = true;
+    } else {
+      isSelected = false;
+      stopScrolling();
+    }
+  });
+  i.event.bind(window, 'mouseup', function () {
+    if (isSelected) {
+      isSelected = false;
+      stopScrolling();
+    }
+  });
+  i.event.bind(window, 'keyup', function () {
+    if (isSelected) {
+      isSelected = false;
+      stopScrolling();
+    }
+  });
+
+  i.event.bind(window, 'mousemove', function (e) {
+    if (isSelected) {
+      var mousePosition = {x: e.pageX, y: e.pageY};
+      var containerGeometry = {
+        left: element.offsetLeft,
+        right: element.offsetLeft + element.offsetWidth,
+        top: element.offsetTop,
+        bottom: element.offsetTop + element.offsetHeight
+      };
+
+      if (mousePosition.x < containerGeometry.left + 3) {
+        scrollDiff.left = -5;
+        _.startScrolling(element, 'x');
+      } else if (mousePosition.x > containerGeometry.right - 3) {
+        scrollDiff.left = 5;
+        _.startScrolling(element, 'x');
+      } else {
+        scrollDiff.left = 0;
+      }
+
+      if (mousePosition.y < containerGeometry.top + 3) {
+        if (containerGeometry.top + 3 - mousePosition.y < 5) {
+          scrollDiff.top = -5;
+        } else {
+          scrollDiff.top = -20;
+        }
+        _.startScrolling(element, 'y');
+      } else if (mousePosition.y > containerGeometry.bottom - 3) {
+        if (mousePosition.y - containerGeometry.bottom + 3 < 5) {
+          scrollDiff.top = 5;
+        } else {
+          scrollDiff.top = 20;
+        }
+        _.startScrolling(element, 'y');
+      } else {
+        scrollDiff.top = 0;
+      }
+
+      if (scrollDiff.top === 0 && scrollDiff.left === 0) {
+        stopScrolling();
+      } else {
+        startScrolling();
+      }
+    }
+  });
+}
+
+module.exports = function (element) {
+  var i = instances.get(element);
+  bindSelectionHandler(element, i);
+};
diff --git a/library/perfect-scrollbar/src/js/plugin/handler/touch.js b/library/perfect-scrollbar/src/js/plugin/handler/touch.js
new file mode 100644
index 000000000..ba5d13307
--- /dev/null
+++ b/library/perfect-scrollbar/src/js/plugin/handler/touch.js
@@ -0,0 +1,179 @@
+'use strict';
+
+var _ = require('../../lib/helper');
+var instances = require('../instances');
+var updateGeometry = require('../update-geometry');
+var updateScroll = require('../update-scroll');
+
+function bindTouchHandler(element, i, supportsTouch, supportsIePointer) {
+  function shouldPreventDefault(deltaX, deltaY) {
+    var scrollTop = element.scrollTop;
+    var scrollLeft = element.scrollLeft;
+    var magnitudeX = Math.abs(deltaX);
+    var magnitudeY = Math.abs(deltaY);
+
+    if (magnitudeY > magnitudeX) {
+      // user is perhaps trying to swipe up/down the page
+
+      if (((deltaY < 0) && (scrollTop === i.contentHeight - i.containerHeight)) ||
+          ((deltaY > 0) && (scrollTop === 0))) {
+        return !i.settings.swipePropagation;
+      }
+    } else if (magnitudeX > magnitudeY) {
+      // user is perhaps trying to swipe left/right across the page
+
+      if (((deltaX < 0) && (scrollLeft === i.contentWidth - i.containerWidth)) ||
+          ((deltaX > 0) && (scrollLeft === 0))) {
+        return !i.settings.swipePropagation;
+      }
+    }
+
+    return true;
+  }
+
+  function applyTouchMove(differenceX, differenceY) {
+    updateScroll(element, 'top', element.scrollTop - differenceY);
+    updateScroll(element, 'left', element.scrollLeft - differenceX);
+
+    updateGeometry(element);
+  }
+
+  var startOffset = {};
+  var startTime = 0;
+  var speed = {};
+  var easingLoop = null;
+  var inGlobalTouch = false;
+  var inLocalTouch = false;
+
+  function globalTouchStart() {
+    inGlobalTouch = true;
+  }
+  function globalTouchEnd() {
+    inGlobalTouch = false;
+  }
+
+  function getTouch(e) {
+    if (e.targetTouches) {
+      return e.targetTouches[0];
+    } else {
+      // Maybe IE pointer
+      return e;
+    }
+  }
+  function shouldHandle(e) {
+    if (e.targetTouches && e.targetTouches.length === 1) {
+      return true;
+    }
+    if (e.pointerType && e.pointerType !== 'mouse' && e.pointerType !== e.MSPOINTER_TYPE_MOUSE) {
+      return true;
+    }
+    return false;
+  }
+  function touchStart(e) {
+    if (shouldHandle(e)) {
+      inLocalTouch = true;
+
+      var touch = getTouch(e);
+
+      startOffset.pageX = touch.pageX;
+      startOffset.pageY = touch.pageY;
+
+      startTime = (new Date()).getTime();
+
+      if (easingLoop !== null) {
+        clearInterval(easingLoop);
+      }
+
+      e.stopPropagation();
+    }
+  }
+  function touchMove(e) {
+    if (!inLocalTouch && i.settings.swipePropagation) {
+      touchStart(e);
+    }
+    if (!inGlobalTouch && inLocalTouch && shouldHandle(e)) {
+      var touch = getTouch(e);
+
+      var currentOffset = {pageX: touch.pageX, pageY: touch.pageY};
+
+      var differenceX = currentOffset.pageX - startOffset.pageX;
+      var differenceY = currentOffset.pageY - startOffset.pageY;
+
+      applyTouchMove(differenceX, differenceY);
+      startOffset = currentOffset;
+
+      var currentTime = (new Date()).getTime();
+
+      var timeGap = currentTime - startTime;
+      if (timeGap > 0) {
+        speed.x = differenceX / timeGap;
+        speed.y = differenceY / timeGap;
+        startTime = currentTime;
+      }
+
+      if (shouldPreventDefault(differenceX, differenceY)) {
+        e.stopPropagation();
+        e.preventDefault();
+      }
+    }
+  }
+  function touchEnd() {
+    if (!inGlobalTouch && inLocalTouch) {
+      inLocalTouch = false;
+
+      clearInterval(easingLoop);
+      easingLoop = setInterval(function () {
+        if (!instances.get(element)) {
+          clearInterval(easingLoop);
+          return;
+        }
+
+        if (!speed.x && !speed.y) {
+          clearInterval(easingLoop);
+          return;
+        }
+
+        if (Math.abs(speed.x) < 0.01 && Math.abs(speed.y) < 0.01) {
+          clearInterval(easingLoop);
+          return;
+        }
+
+        applyTouchMove(speed.x * 30, speed.y * 30);
+
+        speed.x *= 0.8;
+        speed.y *= 0.8;
+      }, 10);
+    }
+  }
+
+  if (supportsTouch) {
+    i.event.bind(window, 'touchstart', globalTouchStart);
+    i.event.bind(window, 'touchend', globalTouchEnd);
+    i.event.bind(element, 'touchstart', touchStart);
+    i.event.bind(element, 'touchmove', touchMove);
+    i.event.bind(element, 'touchend', touchEnd);
+  } else if (supportsIePointer) {
+    if (window.PointerEvent) {
+      i.event.bind(window, 'pointerdown', globalTouchStart);
+      i.event.bind(window, 'pointerup', globalTouchEnd);
+      i.event.bind(element, 'pointerdown', touchStart);
+      i.event.bind(element, 'pointermove', touchMove);
+      i.event.bind(element, 'pointerup', touchEnd);
+    } else if (window.MSPointerEvent) {
+      i.event.bind(window, 'MSPointerDown', globalTouchStart);
+      i.event.bind(window, 'MSPointerUp', globalTouchEnd);
+      i.event.bind(element, 'MSPointerDown', touchStart);
+      i.event.bind(element, 'MSPointerMove', touchMove);
+      i.event.bind(element, 'MSPointerUp', touchEnd);
+    }
+  }
+}
+
+module.exports = function (element) {
+  if (!_.env.supportsTouch && !_.env.supportsIePointer) {
+    return;
+  }
+
+  var i = instances.get(element);
+  bindTouchHandler(element, i, _.env.supportsTouch, _.env.supportsIePointer);
+};
diff --git a/library/perfect-scrollbar/src/js/plugin/initialize.js b/library/perfect-scrollbar/src/js/plugin/initialize.js
new file mode 100644
index 000000000..05918a5a2
--- /dev/null
+++ b/library/perfect-scrollbar/src/js/plugin/initialize.js
@@ -0,0 +1,37 @@
+'use strict';
+
+var _ = require('../lib/helper');
+var cls = require('../lib/class');
+var instances = require('./instances');
+var updateGeometry = require('./update-geometry');
+
+// Handlers
+var handlers = {
+  'click-rail': require('./handler/click-rail'),
+  'drag-scrollbar': require('./handler/drag-scrollbar'),
+  'keyboard': require('./handler/keyboard'),
+  'wheel': require('./handler/mouse-wheel'),
+  'touch': require('./handler/touch'),
+  'selection': require('./handler/selection')
+};
+var nativeScrollHandler = require('./handler/native-scroll');
+
+module.exports = function (element, userSettings) {
+  userSettings = typeof userSettings === 'object' ? userSettings : {};
+
+  cls.add(element, 'ps-container');
+
+  // Create a plugin instance.
+  var i = instances.add(element);
+
+  i.settings = _.extend(i.settings, userSettings);
+  cls.add(element, 'ps-theme-' + i.settings.theme);
+
+  i.settings.handlers.forEach(function (handlerName) {
+    handlers[handlerName](element);
+  });
+
+  nativeScrollHandler(element);
+
+  updateGeometry(element);
+};
diff --git a/library/perfect-scrollbar/src/js/plugin/instances.js b/library/perfect-scrollbar/src/js/plugin/instances.js
new file mode 100644
index 000000000..d4d74f377
--- /dev/null
+++ b/library/perfect-scrollbar/src/js/plugin/instances.js
@@ -0,0 +1,107 @@
+'use strict';
+
+var _ = require('../lib/helper');
+var cls = require('../lib/class');
+var defaultSettings = require('./default-setting');
+var dom = require('../lib/dom');
+var EventManager = require('../lib/event-manager');
+var guid = require('../lib/guid');
+
+var instances = {};
+
+function Instance(element) {
+  var i = this;
+
+  i.settings = _.clone(defaultSettings);
+  i.containerWidth = null;
+  i.containerHeight = null;
+  i.contentWidth = null;
+  i.contentHeight = null;
+
+  i.isRtl = dom.css(element, 'direction') === "rtl";
+  i.isNegativeScroll = (function () {
+    var originalScrollLeft = element.scrollLeft;
+    var result = null;
+    element.scrollLeft = -1;
+    result = element.scrollLeft < 0;
+    element.scrollLeft = originalScrollLeft;
+    return result;
+  })();
+  i.negativeScrollAdjustment = i.isNegativeScroll ? element.scrollWidth - element.clientWidth : 0;
+  i.event = new EventManager();
+  i.ownerDocument = element.ownerDocument || document;
+
+  function focus() {
+    cls.add(element, 'ps-focus');
+  }
+
+  function blur() {
+    cls.remove(element, 'ps-focus');
+  }
+
+  i.scrollbarXRail = dom.appendTo(dom.e('div', 'ps-scrollbar-x-rail'), element);
+  i.scrollbarX = dom.appendTo(dom.e('div', 'ps-scrollbar-x'), i.scrollbarXRail);
+  i.scrollbarX.setAttribute('tabindex', 0);
+  i.event.bind(i.scrollbarX, 'focus', focus);
+  i.event.bind(i.scrollbarX, 'blur', blur);
+  i.scrollbarXActive = null;
+  i.scrollbarXWidth = null;
+  i.scrollbarXLeft = null;
+  i.scrollbarXBottom = _.toInt(dom.css(i.scrollbarXRail, 'bottom'));
+  i.isScrollbarXUsingBottom = i.scrollbarXBottom === i.scrollbarXBottom; // !isNaN
+  i.scrollbarXTop = i.isScrollbarXUsingBottom ? null : _.toInt(dom.css(i.scrollbarXRail, 'top'));
+  i.railBorderXWidth = _.toInt(dom.css(i.scrollbarXRail, 'borderLeftWidth')) + _.toInt(dom.css(i.scrollbarXRail, 'borderRightWidth'));
+  // Set rail to display:block to calculate margins
+  dom.css(i.scrollbarXRail, 'display', 'block');
+  i.railXMarginWidth = _.toInt(dom.css(i.scrollbarXRail, 'marginLeft')) + _.toInt(dom.css(i.scrollbarXRail, 'marginRight'));
+  dom.css(i.scrollbarXRail, 'display', '');
+  i.railXWidth = null;
+  i.railXRatio = null;
+
+  i.scrollbarYRail = dom.appendTo(dom.e('div', 'ps-scrollbar-y-rail'), element);
+  i.scrollbarY = dom.appendTo(dom.e('div', 'ps-scrollbar-y'), i.scrollbarYRail);
+  i.scrollbarY.setAttribute('tabindex', 0);
+  i.event.bind(i.scrollbarY, 'focus', focus);
+  i.event.bind(i.scrollbarY, 'blur', blur);
+  i.scrollbarYActive = null;
+  i.scrollbarYHeight = null;
+  i.scrollbarYTop = null;
+  i.scrollbarYRight = _.toInt(dom.css(i.scrollbarYRail, 'right'));
+  i.isScrollbarYUsingRight = i.scrollbarYRight === i.scrollbarYRight; // !isNaN
+  i.scrollbarYLeft = i.isScrollbarYUsingRight ? null : _.toInt(dom.css(i.scrollbarYRail, 'left'));
+  i.scrollbarYOuterWidth = i.isRtl ? _.outerWidth(i.scrollbarY) : null;
+  i.railBorderYWidth = _.toInt(dom.css(i.scrollbarYRail, 'borderTopWidth')) + _.toInt(dom.css(i.scrollbarYRail, 'borderBottomWidth'));
+  dom.css(i.scrollbarYRail, 'display', 'block');
+  i.railYMarginHeight = _.toInt(dom.css(i.scrollbarYRail, 'marginTop')) + _.toInt(dom.css(i.scrollbarYRail, 'marginBottom'));
+  dom.css(i.scrollbarYRail, 'display', '');
+  i.railYHeight = null;
+  i.railYRatio = null;
+}
+
+function getId(element) {
+  return element.getAttribute('data-ps-id');
+}
+
+function setId(element, id) {
+  element.setAttribute('data-ps-id', id);
+}
+
+function removeId(element) {
+  element.removeAttribute('data-ps-id');
+}
+
+exports.add = function (element) {
+  var newId = guid();
+  setId(element, newId);
+  instances[newId] = new Instance(element);
+  return instances[newId];
+};
+
+exports.remove = function (element) {
+  delete instances[getId(element)];
+  removeId(element);
+};
+
+exports.get = function (element) {
+  return instances[getId(element)];
+};
diff --git a/library/perfect-scrollbar/src/js/plugin/update-geometry.js b/library/perfect-scrollbar/src/js/plugin/update-geometry.js
new file mode 100644
index 000000000..b936ea1d3
--- /dev/null
+++ b/library/perfect-scrollbar/src/js/plugin/update-geometry.js
@@ -0,0 +1,126 @@
+'use strict';
+
+var _ = require('../lib/helper');
+var cls = require('../lib/class');
+var dom = require('../lib/dom');
+var instances = require('./instances');
+var updateScroll = require('./update-scroll');
+
+function getThumbSize(i, thumbSize) {
+  if (i.settings.minScrollbarLength) {
+    thumbSize = Math.max(thumbSize, i.settings.minScrollbarLength);
+  }
+  if (i.settings.maxScrollbarLength) {
+    thumbSize = Math.min(thumbSize, i.settings.maxScrollbarLength);
+  }
+  return thumbSize;
+}
+
+function updateCss(element, i) {
+  var xRailOffset = {width: i.railXWidth};
+  if (i.isRtl) {
+    xRailOffset.left = i.negativeScrollAdjustment + element.scrollLeft + i.containerWidth - i.contentWidth;
+  } else {
+    xRailOffset.left = element.scrollLeft;
+  }
+  if (i.isScrollbarXUsingBottom) {
+    xRailOffset.bottom = i.scrollbarXBottom - element.scrollTop;
+  } else {
+    xRailOffset.top = i.scrollbarXTop + element.scrollTop;
+  }
+  dom.css(i.scrollbarXRail, xRailOffset);
+
+  var yRailOffset = {top: element.scrollTop, height: i.railYHeight};
+  if (i.isScrollbarYUsingRight) {
+    if (i.isRtl) {
+      yRailOffset.right = i.contentWidth - (i.negativeScrollAdjustment + element.scrollLeft) - i.scrollbarYRight - i.scrollbarYOuterWidth;
+    } else {
+      yRailOffset.right = i.scrollbarYRight - element.scrollLeft;
+    }
+  } else {
+    if (i.isRtl) {
+      yRailOffset.left = i.negativeScrollAdjustment + element.scrollLeft + i.containerWidth * 2 - i.contentWidth - i.scrollbarYLeft - i.scrollbarYOuterWidth;
+    } else {
+      yRailOffset.left = i.scrollbarYLeft + element.scrollLeft;
+    }
+  }
+  dom.css(i.scrollbarYRail, yRailOffset);
+
+  dom.css(i.scrollbarX, {left: i.scrollbarXLeft, width: i.scrollbarXWidth - i.railBorderXWidth});
+  dom.css(i.scrollbarY, {top: i.scrollbarYTop, height: i.scrollbarYHeight - i.railBorderYWidth});
+}
+
+module.exports = function (element) {
+  var i = instances.get(element);
+
+  i.containerWidth = element.clientWidth;
+  i.containerHeight = element.clientHeight;
+  i.contentWidth = element.scrollWidth;
+  i.contentHeight = element.scrollHeight;
+
+  var existingRails;
+  if (!element.contains(i.scrollbarXRail)) {
+    existingRails = dom.queryChildren(element, '.ps-scrollbar-x-rail');
+    if (existingRails.length > 0) {
+      existingRails.forEach(function (rail) {
+        dom.remove(rail);
+      });
+    }
+    dom.appendTo(i.scrollbarXRail, element);
+  }
+  if (!element.contains(i.scrollbarYRail)) {
+    existingRails = dom.queryChildren(element, '.ps-scrollbar-y-rail');
+    if (existingRails.length > 0) {
+      existingRails.forEach(function (rail) {
+        dom.remove(rail);
+      });
+    }
+    dom.appendTo(i.scrollbarYRail, element);
+  }
+
+  if (!i.settings.suppressScrollX && i.containerWidth + i.settings.scrollXMarginOffset < i.contentWidth) {
+    i.scrollbarXActive = true;
+    i.railXWidth = i.containerWidth - i.railXMarginWidth;
+    i.railXRatio = i.containerWidth / i.railXWidth;
+    i.scrollbarXWidth = getThumbSize(i, _.toInt(i.railXWidth * i.containerWidth / i.contentWidth));
+    i.scrollbarXLeft = _.toInt((i.negativeScrollAdjustment + element.scrollLeft) * (i.railXWidth - i.scrollbarXWidth) / (i.contentWidth - i.containerWidth));
+  } else {
+    i.scrollbarXActive = false;
+  }
+
+  if (!i.settings.suppressScrollY && i.containerHeight + i.settings.scrollYMarginOffset < i.contentHeight) {
+    i.scrollbarYActive = true;
+    i.railYHeight = i.containerHeight - i.railYMarginHeight;
+    i.railYRatio = i.containerHeight / i.railYHeight;
+    i.scrollbarYHeight = getThumbSize(i, _.toInt(i.railYHeight * i.containerHeight / i.contentHeight));
+    i.scrollbarYTop = _.toInt(element.scrollTop * (i.railYHeight - i.scrollbarYHeight) / (i.contentHeight - i.containerHeight));
+  } else {
+    i.scrollbarYActive = false;
+  }
+
+  if (i.scrollbarXLeft >= i.railXWidth - i.scrollbarXWidth) {
+    i.scrollbarXLeft = i.railXWidth - i.scrollbarXWidth;
+  }
+  if (i.scrollbarYTop >= i.railYHeight - i.scrollbarYHeight) {
+    i.scrollbarYTop = i.railYHeight - i.scrollbarYHeight;
+  }
+
+  updateCss(element, i);
+
+  if (i.scrollbarXActive) {
+    cls.add(element, 'ps-active-x');
+  } else {
+    cls.remove(element, 'ps-active-x');
+    i.scrollbarXWidth = 0;
+    i.scrollbarXLeft = 0;
+    updateScroll(element, 'left', 0);
+  }
+  if (i.scrollbarYActive) {
+    cls.add(element, 'ps-active-y');
+  } else {
+    cls.remove(element, 'ps-active-y');
+    i.scrollbarYHeight = 0;
+    i.scrollbarYTop = 0;
+    updateScroll(element, 'top', 0);
+  }
+};
diff --git a/library/perfect-scrollbar/src/js/plugin/update-scroll.js b/library/perfect-scrollbar/src/js/plugin/update-scroll.js
new file mode 100644
index 000000000..1a9ad2ccf
--- /dev/null
+++ b/library/perfect-scrollbar/src/js/plugin/update-scroll.js
@@ -0,0 +1,97 @@
+'use strict';
+
+var instances = require('./instances');
+
+var lastTop;
+var lastLeft;
+
+var createDOMEvent = function (name) {
+  var event = document.createEvent("Event");
+  event.initEvent(name, true, true);
+  return event;
+};
+
+module.exports = function (element, axis, value) {
+  if (typeof element === 'undefined') {
+    throw 'You must provide an element to the update-scroll function';
+  }
+
+  if (typeof axis === 'undefined') {
+    throw 'You must provide an axis to the update-scroll function';
+  }
+
+  if (typeof value === 'undefined') {
+    throw 'You must provide a value to the update-scroll function';
+  }
+
+  if (axis === 'top' && value <= 0) {
+    element.scrollTop = value = 0; // don't allow negative scroll
+    element.dispatchEvent(createDOMEvent('ps-y-reach-start'));
+  }
+
+  if (axis === 'left' && value <= 0) {
+    element.scrollLeft = value = 0; // don't allow negative scroll
+    element.dispatchEvent(createDOMEvent('ps-x-reach-start'));
+  }
+
+  var i = instances.get(element);
+
+  if (axis === 'top' && value >= i.contentHeight - i.containerHeight) {
+    // don't allow scroll past container
+    value = i.contentHeight - i.containerHeight;
+    if (value - element.scrollTop <= 1) {
+      // mitigates rounding errors on non-subpixel scroll values
+      value = element.scrollTop;
+    } else {
+      element.scrollTop = value;
+    }
+    element.dispatchEvent(createDOMEvent('ps-y-reach-end'));
+  }
+
+  if (axis === 'left' && value >= i.contentWidth - i.containerWidth) {
+    // don't allow scroll past container
+    value = i.contentWidth - i.containerWidth;
+    if (value - element.scrollLeft <= 1) {
+      // mitigates rounding errors on non-subpixel scroll values
+      value = element.scrollLeft;
+    } else {
+      element.scrollLeft = value;
+    }
+    element.dispatchEvent(createDOMEvent('ps-x-reach-end'));
+  }
+
+  if (!lastTop) {
+    lastTop = element.scrollTop;
+  }
+
+  if (!lastLeft) {
+    lastLeft = element.scrollLeft;
+  }
+
+  if (axis === 'top' && value < lastTop) {
+    element.dispatchEvent(createDOMEvent('ps-scroll-up'));
+  }
+
+  if (axis === 'top' && value > lastTop) {
+    element.dispatchEvent(createDOMEvent('ps-scroll-down'));
+  }
+
+  if (axis === 'left' && value < lastLeft) {
+    element.dispatchEvent(createDOMEvent('ps-scroll-left'));
+  }
+
+  if (axis === 'left' && value > lastLeft) {
+    element.dispatchEvent(createDOMEvent('ps-scroll-right'));
+  }
+
+  if (axis === 'top') {
+    element.scrollTop = lastTop = value;
+    element.dispatchEvent(createDOMEvent('ps-scroll-y'));
+  }
+
+  if (axis === 'left') {
+    element.scrollLeft = lastLeft = value;
+    element.dispatchEvent(createDOMEvent('ps-scroll-x'));
+  }
+
+};
diff --git a/library/perfect-scrollbar/src/js/plugin/update.js b/library/perfect-scrollbar/src/js/plugin/update.js
new file mode 100644
index 000000000..cc9da15f4
--- /dev/null
+++ b/library/perfect-scrollbar/src/js/plugin/update.js
@@ -0,0 +1,37 @@
+'use strict';
+
+var _ = require('../lib/helper');
+var dom = require('../lib/dom');
+var instances = require('./instances');
+var updateGeometry = require('./update-geometry');
+var updateScroll = require('./update-scroll');
+
+module.exports = function (element) {
+  var i = instances.get(element);
+
+  if (!i) {
+    return;
+  }
+
+  // Recalcuate negative scrollLeft adjustment
+  i.negativeScrollAdjustment = i.isNegativeScroll ? element.scrollWidth - element.clientWidth : 0;
+
+  // Recalculate rail margins
+  dom.css(i.scrollbarXRail, 'display', 'block');
+  dom.css(i.scrollbarYRail, 'display', 'block');
+  i.railXMarginWidth = _.toInt(dom.css(i.scrollbarXRail, 'marginLeft')) + _.toInt(dom.css(i.scrollbarXRail, 'marginRight'));
+  i.railYMarginHeight = _.toInt(dom.css(i.scrollbarYRail, 'marginTop')) + _.toInt(dom.css(i.scrollbarYRail, 'marginBottom'));
+
+  // Hide scrollbars not to affect scrollWidth and scrollHeight
+  dom.css(i.scrollbarXRail, 'display', 'none');
+  dom.css(i.scrollbarYRail, 'display', 'none');
+
+  updateGeometry(element);
+
+  // Update top/left scroll to trigger events
+  updateScroll(element, 'top', element.scrollTop);
+  updateScroll(element, 'left', element.scrollLeft);
+
+  dom.css(i.scrollbarXRail, 'display', '');
+  dom.css(i.scrollbarYRail, 'display', '');
+};
diff --git a/view/templates/head.tpl b/view/templates/head.tpl
index 3896a4b4a..ceae498cf 100644
--- a/view/templates/head.tpl
+++ b/view/templates/head.tpl
@@ -6,7 +6,7 @@
 <link rel="stylesheet" href="view/asset/jquery-colorbox/example5/colorbox.css?v={{$smarty.const.FRIENDICA_VERSION}}" type="text/css" media="screen" />
 <link rel="stylesheet" href="view/asset/jgrowl/jquery.jgrowl.min.css?v={{$smarty.const.FRIENDICA_VERSION}}" type="text/css" media="screen" />
 <link rel="stylesheet" href="view/asset/jquery-datetimepicker/build/jquery.datetimepicker.min.css?v={{$smarty.const.FRIENDICA_VERSION}}" type="text/css" media="screen" />
-<link rel="stylesheet" href="view/asset/perfect-scrollbar/css/perfect-scrollbar.min.css?v={{$smarty.const.FRIENDICA_VERSION}}" type="text/css" media="screen" />
+<link rel="stylesheet" href="library/perfect-scrollbar/css/perfect-scrollbar.min.css?v={{$smarty.const.FRIENDICA_VERSION}}" type="text/css" media="screen" />
 
 {{foreach $stylesheets as $stylesheetUrl}}
 <link rel="stylesheet" href="{{$stylesheetUrl}}" type="text/css" media="screen" />
@@ -40,7 +40,7 @@
 <script type="text/javascript" src="view/asset/jquery-colorbox/jquery.colorbox-min.js?v={{$smarty.const.FRIENDICA_VERSION}}"></script>
 <script type="text/javascript" src="view/asset/jgrowl/jquery.jgrowl.min.js?v={{$smarty.const.FRIENDICA_VERSION}}"></script>
 <script type="text/javascript" src="view/asset/jquery-datetimepicker/build/jquery.datetimepicker.full.min.js?v={{$smarty.const.FRIENDICA_VERSION}}"></script>
-<script type="text/javascript" src="view/asset/perfect-scrollbar/js/perfect-scrollbar.jquery.min.js?v={{$smarty.const.FRIENDICA_VERSION}}" ></script>
+<script type="text/javascript" src="library/perfect-scrollbar/js/perfect-scrollbar.jquery.min.js?v={{$smarty.const.FRIENDICA_VERSION}}" ></script>
 <script type="text/javascript" src="view/asset/imagesloaded/imagesloaded.pkgd.min.js?v={{$smarty.const.FRIENDICA_VERSION}}"></script>
 <script type="text/javascript" src="view/asset/base64/base64.min.js?v={{$smarty.const.FRIENDICA_VERSION}}" ></script>
 <script type="text/javascript" src="view/asset/dompurify/dist/purify.min.js?v={{$smarty.const.FRIENDICA_VERSION}}"></script>
diff --git a/view/theme/frio/templates/head.tpl b/view/theme/frio/templates/head.tpl
index b539a90d9..89fd37736 100644
--- a/view/theme/frio/templates/head.tpl
+++ b/view/theme/frio/templates/head.tpl
@@ -11,7 +11,7 @@
 <link rel="stylesheet" href="view/asset/jquery-colorbox/example5/colorbox.css?v={{$smarty.const.FRIENDICA_VERSION}}" type="text/css" media="screen" />
 <link rel="stylesheet" href="view/asset/jgrowl/jquery.jgrowl.min.css?v={{$smarty.const.FRIENDICA_VERSION}}" type="text/css" media="screen" />
 <link rel="stylesheet" href="view/asset/jquery-datetimepicker/build/jquery.datetimepicker.min.css?v={{$smarty.const.FRIENDICA_VERSION}}" type="text/css" media="screen" />
-<link rel="stylesheet" href="view/asset/perfect-scrollbar/css/perfect-scrollbar.min.css?v={{$smarty.const.FRIENDICA_VERSION}}" type="text/css" media="screen" />
+<link rel="stylesheet" href="library/perfect-scrollbar/css/perfect-scrollbar.min.css?v={{$smarty.const.FRIENDICA_VERSION}}" type="text/css" media="screen" />
 
 <link rel="stylesheet" href="view/theme/frio/frameworks/bootstrap/css/bootstrap.min.css?v={{$smarty.const.FRIENDICA_VERSION}}" type="text/css" media="screen"/>
 <link rel="stylesheet" href="view/theme/frio/frameworks/bootstrap/css/bootstrap-theme.min.css?v={{$smarty.const.FRIENDICA_VERSION}}" type="text/css" media="screen"/>
@@ -61,7 +61,7 @@
 <script type="text/javascript" src="view/asset/jquery-colorbox/jquery.colorbox-min.js?v={{$smarty.const.FRIENDICA_VERSION}}"></script>
 <script type="text/javascript" src="view/asset/jgrowl/jquery.jgrowl.min.js?v={{$smarty.const.FRIENDICA_VERSION}}"></script>
 <script type="text/javascript" src="view/asset/jquery-datetimepicker/build/jquery.datetimepicker.full.min.js?v={{$smarty.const.FRIENDICA_VERSION}}"></script>
-<script type="text/javascript" src="view/asset/perfect-scrollbar/js/perfect-scrollbar.jquery.min.js?v={{$smarty.const.FRIENDICA_VERSION}}"></script>
+<script type="text/javascript" src="library/perfect-scrollbar/js/perfect-scrollbar.jquery.min.js?v={{$smarty.const.FRIENDICA_VERSION}}"></script>
 <script type="text/javascript" src="view/asset/imagesloaded/imagesloaded.pkgd.min.js?v={{$smarty.const.FRIENDICA_VERSION}}"></script>
 <script type="text/javascript" src="view/asset/base64/base64.min.js?v={{$smarty.const.FRIENDICA_VERSION}}"></script>
 <script type="text/javascript" src="view/asset/dompurify/dist/purify.min.js?v={{$smarty.const.FRIENDICA_VERSION}}"></script>

From f3bf723cc70b2a09cd04561a0161324c20d366d7 Mon Sep 17 00:00:00 2001
From: Michael <heluecht@pirati.ca>
Date: Tue, 5 May 2020 12:42:30 +0000
Subject: [PATCH 12/13] Moved to view/js

---
 {library => view/js}/perfect-scrollbar/LICENSE                | 0
 {library => view/js}/perfect-scrollbar/README.md              | 0
 {library => view/js}/perfect-scrollbar/bower.json             | 0
 .../js}/perfect-scrollbar/css/perfect-scrollbar.css           | 0
 .../js}/perfect-scrollbar/css/perfect-scrollbar.min.css       | 0
 .../js}/perfect-scrollbar/js/perfect-scrollbar.jquery.js      | 0
 .../js}/perfect-scrollbar/js/perfect-scrollbar.jquery.min.js  | 0
 .../js}/perfect-scrollbar/js/perfect-scrollbar.js             | 0
 .../js}/perfect-scrollbar/js/perfect-scrollbar.min.js         | 0
 {library => view/js}/perfect-scrollbar/src/css/main.scss      | 0
 {library => view/js}/perfect-scrollbar/src/css/mixins.scss    | 0
 {library => view/js}/perfect-scrollbar/src/css/themes.scss    | 0
 {library => view/js}/perfect-scrollbar/src/css/variables.scss | 0
 .../js}/perfect-scrollbar/src/js/adaptor/global.js            | 0
 .../js}/perfect-scrollbar/src/js/adaptor/jquery.js            | 0
 {library => view/js}/perfect-scrollbar/src/js/lib/class.js    | 0
 {library => view/js}/perfect-scrollbar/src/js/lib/dom.js      | 0
 .../js}/perfect-scrollbar/src/js/lib/event-manager.js         | 0
 {library => view/js}/perfect-scrollbar/src/js/lib/guid.js     | 0
 {library => view/js}/perfect-scrollbar/src/js/lib/helper.js   | 0
 {library => view/js}/perfect-scrollbar/src/js/main.js         | 0
 .../js}/perfect-scrollbar/src/js/plugin/default-setting.js    | 0
 .../js}/perfect-scrollbar/src/js/plugin/destroy.js            | 0
 .../js}/perfect-scrollbar/src/js/plugin/handler/click-rail.js | 0
 .../perfect-scrollbar/src/js/plugin/handler/drag-scrollbar.js | 0
 .../js}/perfect-scrollbar/src/js/plugin/handler/keyboard.js   | 0
 .../perfect-scrollbar/src/js/plugin/handler/mouse-wheel.js    | 0
 .../perfect-scrollbar/src/js/plugin/handler/native-scroll.js  | 0
 .../js}/perfect-scrollbar/src/js/plugin/handler/selection.js  | 0
 .../js}/perfect-scrollbar/src/js/plugin/handler/touch.js      | 0
 .../js}/perfect-scrollbar/src/js/plugin/initialize.js         | 0
 .../js}/perfect-scrollbar/src/js/plugin/instances.js          | 0
 .../js}/perfect-scrollbar/src/js/plugin/update-geometry.js    | 0
 .../js}/perfect-scrollbar/src/js/plugin/update-scroll.js      | 0
 .../js}/perfect-scrollbar/src/js/plugin/update.js             | 0
 view/templates/head.tpl                                       | 4 ++--
 view/theme/frio/templates/head.tpl                            | 4 ++--
 37 files changed, 4 insertions(+), 4 deletions(-)
 rename {library => view/js}/perfect-scrollbar/LICENSE (100%)
 rename {library => view/js}/perfect-scrollbar/README.md (100%)
 rename {library => view/js}/perfect-scrollbar/bower.json (100%)
 rename {library => view/js}/perfect-scrollbar/css/perfect-scrollbar.css (100%)
 rename {library => view/js}/perfect-scrollbar/css/perfect-scrollbar.min.css (100%)
 rename {library => view/js}/perfect-scrollbar/js/perfect-scrollbar.jquery.js (100%)
 rename {library => view/js}/perfect-scrollbar/js/perfect-scrollbar.jquery.min.js (100%)
 rename {library => view/js}/perfect-scrollbar/js/perfect-scrollbar.js (100%)
 rename {library => view/js}/perfect-scrollbar/js/perfect-scrollbar.min.js (100%)
 rename {library => view/js}/perfect-scrollbar/src/css/main.scss (100%)
 rename {library => view/js}/perfect-scrollbar/src/css/mixins.scss (100%)
 rename {library => view/js}/perfect-scrollbar/src/css/themes.scss (100%)
 rename {library => view/js}/perfect-scrollbar/src/css/variables.scss (100%)
 rename {library => view/js}/perfect-scrollbar/src/js/adaptor/global.js (100%)
 rename {library => view/js}/perfect-scrollbar/src/js/adaptor/jquery.js (100%)
 rename {library => view/js}/perfect-scrollbar/src/js/lib/class.js (100%)
 rename {library => view/js}/perfect-scrollbar/src/js/lib/dom.js (100%)
 rename {library => view/js}/perfect-scrollbar/src/js/lib/event-manager.js (100%)
 rename {library => view/js}/perfect-scrollbar/src/js/lib/guid.js (100%)
 rename {library => view/js}/perfect-scrollbar/src/js/lib/helper.js (100%)
 rename {library => view/js}/perfect-scrollbar/src/js/main.js (100%)
 rename {library => view/js}/perfect-scrollbar/src/js/plugin/default-setting.js (100%)
 rename {library => view/js}/perfect-scrollbar/src/js/plugin/destroy.js (100%)
 rename {library => view/js}/perfect-scrollbar/src/js/plugin/handler/click-rail.js (100%)
 rename {library => view/js}/perfect-scrollbar/src/js/plugin/handler/drag-scrollbar.js (100%)
 rename {library => view/js}/perfect-scrollbar/src/js/plugin/handler/keyboard.js (100%)
 rename {library => view/js}/perfect-scrollbar/src/js/plugin/handler/mouse-wheel.js (100%)
 rename {library => view/js}/perfect-scrollbar/src/js/plugin/handler/native-scroll.js (100%)
 rename {library => view/js}/perfect-scrollbar/src/js/plugin/handler/selection.js (100%)
 rename {library => view/js}/perfect-scrollbar/src/js/plugin/handler/touch.js (100%)
 rename {library => view/js}/perfect-scrollbar/src/js/plugin/initialize.js (100%)
 rename {library => view/js}/perfect-scrollbar/src/js/plugin/instances.js (100%)
 rename {library => view/js}/perfect-scrollbar/src/js/plugin/update-geometry.js (100%)
 rename {library => view/js}/perfect-scrollbar/src/js/plugin/update-scroll.js (100%)
 rename {library => view/js}/perfect-scrollbar/src/js/plugin/update.js (100%)

diff --git a/library/perfect-scrollbar/LICENSE b/view/js/perfect-scrollbar/LICENSE
similarity index 100%
rename from library/perfect-scrollbar/LICENSE
rename to view/js/perfect-scrollbar/LICENSE
diff --git a/library/perfect-scrollbar/README.md b/view/js/perfect-scrollbar/README.md
similarity index 100%
rename from library/perfect-scrollbar/README.md
rename to view/js/perfect-scrollbar/README.md
diff --git a/library/perfect-scrollbar/bower.json b/view/js/perfect-scrollbar/bower.json
similarity index 100%
rename from library/perfect-scrollbar/bower.json
rename to view/js/perfect-scrollbar/bower.json
diff --git a/library/perfect-scrollbar/css/perfect-scrollbar.css b/view/js/perfect-scrollbar/css/perfect-scrollbar.css
similarity index 100%
rename from library/perfect-scrollbar/css/perfect-scrollbar.css
rename to view/js/perfect-scrollbar/css/perfect-scrollbar.css
diff --git a/library/perfect-scrollbar/css/perfect-scrollbar.min.css b/view/js/perfect-scrollbar/css/perfect-scrollbar.min.css
similarity index 100%
rename from library/perfect-scrollbar/css/perfect-scrollbar.min.css
rename to view/js/perfect-scrollbar/css/perfect-scrollbar.min.css
diff --git a/library/perfect-scrollbar/js/perfect-scrollbar.jquery.js b/view/js/perfect-scrollbar/js/perfect-scrollbar.jquery.js
similarity index 100%
rename from library/perfect-scrollbar/js/perfect-scrollbar.jquery.js
rename to view/js/perfect-scrollbar/js/perfect-scrollbar.jquery.js
diff --git a/library/perfect-scrollbar/js/perfect-scrollbar.jquery.min.js b/view/js/perfect-scrollbar/js/perfect-scrollbar.jquery.min.js
similarity index 100%
rename from library/perfect-scrollbar/js/perfect-scrollbar.jquery.min.js
rename to view/js/perfect-scrollbar/js/perfect-scrollbar.jquery.min.js
diff --git a/library/perfect-scrollbar/js/perfect-scrollbar.js b/view/js/perfect-scrollbar/js/perfect-scrollbar.js
similarity index 100%
rename from library/perfect-scrollbar/js/perfect-scrollbar.js
rename to view/js/perfect-scrollbar/js/perfect-scrollbar.js
diff --git a/library/perfect-scrollbar/js/perfect-scrollbar.min.js b/view/js/perfect-scrollbar/js/perfect-scrollbar.min.js
similarity index 100%
rename from library/perfect-scrollbar/js/perfect-scrollbar.min.js
rename to view/js/perfect-scrollbar/js/perfect-scrollbar.min.js
diff --git a/library/perfect-scrollbar/src/css/main.scss b/view/js/perfect-scrollbar/src/css/main.scss
similarity index 100%
rename from library/perfect-scrollbar/src/css/main.scss
rename to view/js/perfect-scrollbar/src/css/main.scss
diff --git a/library/perfect-scrollbar/src/css/mixins.scss b/view/js/perfect-scrollbar/src/css/mixins.scss
similarity index 100%
rename from library/perfect-scrollbar/src/css/mixins.scss
rename to view/js/perfect-scrollbar/src/css/mixins.scss
diff --git a/library/perfect-scrollbar/src/css/themes.scss b/view/js/perfect-scrollbar/src/css/themes.scss
similarity index 100%
rename from library/perfect-scrollbar/src/css/themes.scss
rename to view/js/perfect-scrollbar/src/css/themes.scss
diff --git a/library/perfect-scrollbar/src/css/variables.scss b/view/js/perfect-scrollbar/src/css/variables.scss
similarity index 100%
rename from library/perfect-scrollbar/src/css/variables.scss
rename to view/js/perfect-scrollbar/src/css/variables.scss
diff --git a/library/perfect-scrollbar/src/js/adaptor/global.js b/view/js/perfect-scrollbar/src/js/adaptor/global.js
similarity index 100%
rename from library/perfect-scrollbar/src/js/adaptor/global.js
rename to view/js/perfect-scrollbar/src/js/adaptor/global.js
diff --git a/library/perfect-scrollbar/src/js/adaptor/jquery.js b/view/js/perfect-scrollbar/src/js/adaptor/jquery.js
similarity index 100%
rename from library/perfect-scrollbar/src/js/adaptor/jquery.js
rename to view/js/perfect-scrollbar/src/js/adaptor/jquery.js
diff --git a/library/perfect-scrollbar/src/js/lib/class.js b/view/js/perfect-scrollbar/src/js/lib/class.js
similarity index 100%
rename from library/perfect-scrollbar/src/js/lib/class.js
rename to view/js/perfect-scrollbar/src/js/lib/class.js
diff --git a/library/perfect-scrollbar/src/js/lib/dom.js b/view/js/perfect-scrollbar/src/js/lib/dom.js
similarity index 100%
rename from library/perfect-scrollbar/src/js/lib/dom.js
rename to view/js/perfect-scrollbar/src/js/lib/dom.js
diff --git a/library/perfect-scrollbar/src/js/lib/event-manager.js b/view/js/perfect-scrollbar/src/js/lib/event-manager.js
similarity index 100%
rename from library/perfect-scrollbar/src/js/lib/event-manager.js
rename to view/js/perfect-scrollbar/src/js/lib/event-manager.js
diff --git a/library/perfect-scrollbar/src/js/lib/guid.js b/view/js/perfect-scrollbar/src/js/lib/guid.js
similarity index 100%
rename from library/perfect-scrollbar/src/js/lib/guid.js
rename to view/js/perfect-scrollbar/src/js/lib/guid.js
diff --git a/library/perfect-scrollbar/src/js/lib/helper.js b/view/js/perfect-scrollbar/src/js/lib/helper.js
similarity index 100%
rename from library/perfect-scrollbar/src/js/lib/helper.js
rename to view/js/perfect-scrollbar/src/js/lib/helper.js
diff --git a/library/perfect-scrollbar/src/js/main.js b/view/js/perfect-scrollbar/src/js/main.js
similarity index 100%
rename from library/perfect-scrollbar/src/js/main.js
rename to view/js/perfect-scrollbar/src/js/main.js
diff --git a/library/perfect-scrollbar/src/js/plugin/default-setting.js b/view/js/perfect-scrollbar/src/js/plugin/default-setting.js
similarity index 100%
rename from library/perfect-scrollbar/src/js/plugin/default-setting.js
rename to view/js/perfect-scrollbar/src/js/plugin/default-setting.js
diff --git a/library/perfect-scrollbar/src/js/plugin/destroy.js b/view/js/perfect-scrollbar/src/js/plugin/destroy.js
similarity index 100%
rename from library/perfect-scrollbar/src/js/plugin/destroy.js
rename to view/js/perfect-scrollbar/src/js/plugin/destroy.js
diff --git a/library/perfect-scrollbar/src/js/plugin/handler/click-rail.js b/view/js/perfect-scrollbar/src/js/plugin/handler/click-rail.js
similarity index 100%
rename from library/perfect-scrollbar/src/js/plugin/handler/click-rail.js
rename to view/js/perfect-scrollbar/src/js/plugin/handler/click-rail.js
diff --git a/library/perfect-scrollbar/src/js/plugin/handler/drag-scrollbar.js b/view/js/perfect-scrollbar/src/js/plugin/handler/drag-scrollbar.js
similarity index 100%
rename from library/perfect-scrollbar/src/js/plugin/handler/drag-scrollbar.js
rename to view/js/perfect-scrollbar/src/js/plugin/handler/drag-scrollbar.js
diff --git a/library/perfect-scrollbar/src/js/plugin/handler/keyboard.js b/view/js/perfect-scrollbar/src/js/plugin/handler/keyboard.js
similarity index 100%
rename from library/perfect-scrollbar/src/js/plugin/handler/keyboard.js
rename to view/js/perfect-scrollbar/src/js/plugin/handler/keyboard.js
diff --git a/library/perfect-scrollbar/src/js/plugin/handler/mouse-wheel.js b/view/js/perfect-scrollbar/src/js/plugin/handler/mouse-wheel.js
similarity index 100%
rename from library/perfect-scrollbar/src/js/plugin/handler/mouse-wheel.js
rename to view/js/perfect-scrollbar/src/js/plugin/handler/mouse-wheel.js
diff --git a/library/perfect-scrollbar/src/js/plugin/handler/native-scroll.js b/view/js/perfect-scrollbar/src/js/plugin/handler/native-scroll.js
similarity index 100%
rename from library/perfect-scrollbar/src/js/plugin/handler/native-scroll.js
rename to view/js/perfect-scrollbar/src/js/plugin/handler/native-scroll.js
diff --git a/library/perfect-scrollbar/src/js/plugin/handler/selection.js b/view/js/perfect-scrollbar/src/js/plugin/handler/selection.js
similarity index 100%
rename from library/perfect-scrollbar/src/js/plugin/handler/selection.js
rename to view/js/perfect-scrollbar/src/js/plugin/handler/selection.js
diff --git a/library/perfect-scrollbar/src/js/plugin/handler/touch.js b/view/js/perfect-scrollbar/src/js/plugin/handler/touch.js
similarity index 100%
rename from library/perfect-scrollbar/src/js/plugin/handler/touch.js
rename to view/js/perfect-scrollbar/src/js/plugin/handler/touch.js
diff --git a/library/perfect-scrollbar/src/js/plugin/initialize.js b/view/js/perfect-scrollbar/src/js/plugin/initialize.js
similarity index 100%
rename from library/perfect-scrollbar/src/js/plugin/initialize.js
rename to view/js/perfect-scrollbar/src/js/plugin/initialize.js
diff --git a/library/perfect-scrollbar/src/js/plugin/instances.js b/view/js/perfect-scrollbar/src/js/plugin/instances.js
similarity index 100%
rename from library/perfect-scrollbar/src/js/plugin/instances.js
rename to view/js/perfect-scrollbar/src/js/plugin/instances.js
diff --git a/library/perfect-scrollbar/src/js/plugin/update-geometry.js b/view/js/perfect-scrollbar/src/js/plugin/update-geometry.js
similarity index 100%
rename from library/perfect-scrollbar/src/js/plugin/update-geometry.js
rename to view/js/perfect-scrollbar/src/js/plugin/update-geometry.js
diff --git a/library/perfect-scrollbar/src/js/plugin/update-scroll.js b/view/js/perfect-scrollbar/src/js/plugin/update-scroll.js
similarity index 100%
rename from library/perfect-scrollbar/src/js/plugin/update-scroll.js
rename to view/js/perfect-scrollbar/src/js/plugin/update-scroll.js
diff --git a/library/perfect-scrollbar/src/js/plugin/update.js b/view/js/perfect-scrollbar/src/js/plugin/update.js
similarity index 100%
rename from library/perfect-scrollbar/src/js/plugin/update.js
rename to view/js/perfect-scrollbar/src/js/plugin/update.js
diff --git a/view/templates/head.tpl b/view/templates/head.tpl
index ceae498cf..a83f3dd20 100644
--- a/view/templates/head.tpl
+++ b/view/templates/head.tpl
@@ -6,7 +6,7 @@
 <link rel="stylesheet" href="view/asset/jquery-colorbox/example5/colorbox.css?v={{$smarty.const.FRIENDICA_VERSION}}" type="text/css" media="screen" />
 <link rel="stylesheet" href="view/asset/jgrowl/jquery.jgrowl.min.css?v={{$smarty.const.FRIENDICA_VERSION}}" type="text/css" media="screen" />
 <link rel="stylesheet" href="view/asset/jquery-datetimepicker/build/jquery.datetimepicker.min.css?v={{$smarty.const.FRIENDICA_VERSION}}" type="text/css" media="screen" />
-<link rel="stylesheet" href="library/perfect-scrollbar/css/perfect-scrollbar.min.css?v={{$smarty.const.FRIENDICA_VERSION}}" type="text/css" media="screen" />
+<link rel="stylesheet" href="view/js/perfect-scrollbar/css/perfect-scrollbar.min.css?v={{$smarty.const.FRIENDICA_VERSION}}" type="text/css" media="screen" />
 
 {{foreach $stylesheets as $stylesheetUrl}}
 <link rel="stylesheet" href="{{$stylesheetUrl}}" type="text/css" media="screen" />
@@ -40,7 +40,7 @@
 <script type="text/javascript" src="view/asset/jquery-colorbox/jquery.colorbox-min.js?v={{$smarty.const.FRIENDICA_VERSION}}"></script>
 <script type="text/javascript" src="view/asset/jgrowl/jquery.jgrowl.min.js?v={{$smarty.const.FRIENDICA_VERSION}}"></script>
 <script type="text/javascript" src="view/asset/jquery-datetimepicker/build/jquery.datetimepicker.full.min.js?v={{$smarty.const.FRIENDICA_VERSION}}"></script>
-<script type="text/javascript" src="library/perfect-scrollbar/js/perfect-scrollbar.jquery.min.js?v={{$smarty.const.FRIENDICA_VERSION}}" ></script>
+<script type="text/javascript" src="view/js/perfect-scrollbar/js/perfect-scrollbar.jquery.min.js?v={{$smarty.const.FRIENDICA_VERSION}}" ></script>
 <script type="text/javascript" src="view/asset/imagesloaded/imagesloaded.pkgd.min.js?v={{$smarty.const.FRIENDICA_VERSION}}"></script>
 <script type="text/javascript" src="view/asset/base64/base64.min.js?v={{$smarty.const.FRIENDICA_VERSION}}" ></script>
 <script type="text/javascript" src="view/asset/dompurify/dist/purify.min.js?v={{$smarty.const.FRIENDICA_VERSION}}"></script>
diff --git a/view/theme/frio/templates/head.tpl b/view/theme/frio/templates/head.tpl
index 89fd37736..ae00ea85e 100644
--- a/view/theme/frio/templates/head.tpl
+++ b/view/theme/frio/templates/head.tpl
@@ -11,7 +11,7 @@
 <link rel="stylesheet" href="view/asset/jquery-colorbox/example5/colorbox.css?v={{$smarty.const.FRIENDICA_VERSION}}" type="text/css" media="screen" />
 <link rel="stylesheet" href="view/asset/jgrowl/jquery.jgrowl.min.css?v={{$smarty.const.FRIENDICA_VERSION}}" type="text/css" media="screen" />
 <link rel="stylesheet" href="view/asset/jquery-datetimepicker/build/jquery.datetimepicker.min.css?v={{$smarty.const.FRIENDICA_VERSION}}" type="text/css" media="screen" />
-<link rel="stylesheet" href="library/perfect-scrollbar/css/perfect-scrollbar.min.css?v={{$smarty.const.FRIENDICA_VERSION}}" type="text/css" media="screen" />
+<link rel="stylesheet" href="view/js/perfect-scrollbar/css/perfect-scrollbar.min.css?v={{$smarty.const.FRIENDICA_VERSION}}" type="text/css" media="screen" />
 
 <link rel="stylesheet" href="view/theme/frio/frameworks/bootstrap/css/bootstrap.min.css?v={{$smarty.const.FRIENDICA_VERSION}}" type="text/css" media="screen"/>
 <link rel="stylesheet" href="view/theme/frio/frameworks/bootstrap/css/bootstrap-theme.min.css?v={{$smarty.const.FRIENDICA_VERSION}}" type="text/css" media="screen"/>
@@ -61,7 +61,7 @@
 <script type="text/javascript" src="view/asset/jquery-colorbox/jquery.colorbox-min.js?v={{$smarty.const.FRIENDICA_VERSION}}"></script>
 <script type="text/javascript" src="view/asset/jgrowl/jquery.jgrowl.min.js?v={{$smarty.const.FRIENDICA_VERSION}}"></script>
 <script type="text/javascript" src="view/asset/jquery-datetimepicker/build/jquery.datetimepicker.full.min.js?v={{$smarty.const.FRIENDICA_VERSION}}"></script>
-<script type="text/javascript" src="library/perfect-scrollbar/js/perfect-scrollbar.jquery.min.js?v={{$smarty.const.FRIENDICA_VERSION}}"></script>
+<script type="text/javascript" src="view/js/perfect-scrollbar/js/perfect-scrollbar.jquery.min.js?v={{$smarty.const.FRIENDICA_VERSION}}"></script>
 <script type="text/javascript" src="view/asset/imagesloaded/imagesloaded.pkgd.min.js?v={{$smarty.const.FRIENDICA_VERSION}}"></script>
 <script type="text/javascript" src="view/asset/base64/base64.min.js?v={{$smarty.const.FRIENDICA_VERSION}}"></script>
 <script type="text/javascript" src="view/asset/dompurify/dist/purify.min.js?v={{$smarty.const.FRIENDICA_VERSION}}"></script>

From d838dcbd8cfdbe154ac49ad6428e659c6b14394e Mon Sep 17 00:00:00 2001
From: Michael <heluecht@pirati.ca>
Date: Tue, 5 May 2020 14:10:39 +0000
Subject: [PATCH 13/13] Removed unused fields

---
 src/Protocol/Diaspora.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Protocol/Diaspora.php b/src/Protocol/Diaspora.php
index 3cdf21b57..708f5335a 100644
--- a/src/Protocol/Diaspora.php
+++ b/src/Protocol/Diaspora.php
@@ -2325,7 +2325,7 @@ class Diaspora
 		Logger::info('Participation stored', ['id' => $message_id, 'guid' => $guid, 'parent_guid' => $parent_guid, 'author' => $author]);
 
 		// Send all existing comments and likes to the requesting server
-		$comments = Item::select(['id', 'uri-id', 'parent', 'verb', 'self'], ['parent' => $parent_item['id']]);
+		$comments = Item::select(['id', 'uri-id', 'parent'], ['parent' => $parent_item['id']]);
 		while ($comment = Item::fetch($comments)) {
 			if ($comment['id'] == $comment['parent']) {
 				continue;