String crafting no longer needs knife, bone needle is usable for sewing.
Fur is no longer wool. Blade traps use generic blades
Merge branch 'master' of https://github.com/TheDarklingWolf/Cataclysm-DDA
added dirtfloor to be excluded from outside
Merge pull request #192 from shmup/master

Dirt floors no longer considered outside.
Optimize caching the per-square is_outside data for the lightmap code, and it works this time.