It turns out my earlier commits didn't completely fix things because certain implementation details were missing. I had assumed they were done. Also, some of the information I had regarding the default schematic orientation was wrong. This commit remedies most of those problems with a robust rotation implementation. However, I haven't added the code for linking Warp Doors yet, and there is a bug with tile entities getting reversed in East/West oriented rooms. Not sure why that's happening.
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