Flann Mod #4 [MC 1.5.1]

- Added the possibility to disable concrete, armed concrete, barbedwire
and steelbars.
- Changed stick crafter to be disabled when paxels are disabled.
- Changed wirecutter to be disabled when barbedwire is disabled.
- Smelted iron, steel ingot, steel sticks, redstone ingot and steel
block can still not be disabled.