Bucket mod.
Originally taken from Minetest Game, adapted for MineClone 2.

License of source code:
-----------------------
Copyright (C) 2011-2012 Kahrl <kahrl@gmx.net>
Copyright (C) 2011-2012 celeron55, Perttu Ahola <celeron55@gmail.com>

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

http://www.gnu.org/licenses/lgpl-2.1.html