Moved Registry events to directly AFTER PreInit instead of before.
This allows modders to register handlers for it without @EventBusSubscriber.
It also allows you to register custom things needed before the construction of blocks or items such as Fluids.
TODO: Move Fluids to a real registry.
@ObjectHolder can now be used on private fields.
Reworked FMLModIdMappingEvent to include data for all registries.
Tile Entities are now registrable.
cpw