Fixed gamepad controls

added crosshair
added flicker timer to light (more smooth transition)
Added updated cave mesh pieces
added crossbow
Merge branch 'master' of https://github.com/simubrett/stlgamejam_sept2013

Conflicts:
	Assets/Meshes/Rooms/Cavern_Pieces/Cavern.fbx
	Assets/Meshes/Rooms/Cavern_Pieces/Cavern_Hallway.fbx
	Assets/Meshes/Rooms/Cavern_Pieces/Corner_Cav01.fbx
	Assets/Meshes/Rooms/Cavern_Pieces/Corner_Cav02.fbx
	Assets/Meshes/Rooms/Cavern_Pieces/Corner_Hall.fbx
	Assets/Meshes/Rooms/Cavern_Pieces/Materials/checkered1.mat.meta
	Assets/Meshes/Rooms/Cavern_Pieces/Materials/checkered2.mat.meta
	Assets/Meshes/Rooms/Cavern_Pieces/Materials/checkered3.mat.meta
	Assets/Meshes/Rooms/Cavern_Pieces/Materials/checkered4.mat.meta