Moved tile entity classes to a separate package. Renamed some block classes to match their in-game names (e.g. ChaosDoor -> UnstableDoor). Moved TransientDoor to the blocks package. Cleaned up a little bit of the code and automatically updated references to the classes that were modified.
DimDoors
Dimensional Doors for Minecraft Adds several items that allow the player to move between and create dimensions
see the MC forum topic for details