Rotten Wood Stuff

-Added Rotten Wood Plank textures.
-Added Rotten Wood Board textures.
-Added Rotten Wood Panel textures.
-Removed some obsolete textures (Samills were replaced with Carpenter's
Benches, and Wood Doors of each wood type will be added by Vanilla in
1.8.
Villager Trades! (finally)

-Updated the Minestrapp-added Villager trades.
Improved Grenades

Closes #275
LandKingdom cape
Merge branch 'master' into new-features