Added basic level Generator and dropping floors
Added barrier
Merge remote-tracking branch 'origin/jason' into callums

Conflicts:
	GGJ14/Assets/Prefabs/Floor.prefab
	GGJ14/Assets/Prefabs/Generator.prefab
	GGJ14/Assets/Scripts/FloorDrop.cs
	GGJ14/Assets/Scripts/LevelGenerator.cs
	GGJ14/Assets/main.unity
	GGJ14/GGJ14.userprefs
Work to integrate Obst"a"cle into the levelGen
Initial Audio files.