Emerald Tools, Deleted not-needed files, cleanup.

Emerald tools are Iron tools for now, just no smelting needed.
Ruby and Sapphire ores and tools, Quartz blocks
catchup with boskee

no stop-bottom to plants, collect plant foods with 1 click
CLEANUP for boskee merge. removed junk files
fixed logs giving to few planks (should be 4)
Merge branch 'master' of git://github.com/ronmurphy/Minecraft

Conflicts:
	blocks.py
	controllers.py
	crafting.py
	items.py
	world.py
Merge branch 'master' of github.com:boskee/Minecraft