Tile entity saving/loading. In particular, the contents of chests should be preserved in saved rooms while editing and loaded when instantiating rooms in the generator. This is the most basic implementation of chest contents. Other tile entities such as signs and furnaces should be preserved as well. The existing NBT tags for tile entities are listed here: http://www.minecraftwiki.net/wiki/Alpha_Level_Format/Chunk_File_Format#Tile_Entity_Format

Main tile entities to consider:

• Signs (already done)
• Chests + Double chests
• Dispensers
• Furnaces

Improved support for chests (position is maintained).
Added support for dispensers.
Added support for furnaces.

Basic support for chests (single and double) is working. Enchantments on items are not yet supported, but type, amount, damage, and data are.