Aircraft Alpha 1.2 rel 4

Snow update!

Additions:
-The new expanded snow biome.
-New wood and "Spruce" tree
-Villagers with trades added to the game
-New weapon "Sharp Icicle"
-Now you can eat the snow
-Added "ice pops"
-Added "Doors, walls and floors"
-Expanded crafts
-Added "sticks"
-Now you can drop objects on the ground