29c8a09218
1. Removed code from BaseDimDoor that was already implemented almost identically in BlockDoor. Clarified some uses of setBlock() by changing them to setBlockToAir() instead. 2. Removed TileEntityDimDoor.invalidate() and moved the regeneration scheduling code to BaseDimDoor.breakBlock(). I would prefer to move away from overriding the invalidate() method. This also simplifies the code since we don't need to perform some of the checks we had in breakBlock().