Fixed TileFactory. Fixed a bug with mesh bounds and rendering efficiency. Added realtime material toggling. Other usability tweaks.
Merge branch 'master' of github.com:Twodordan/Sandbox_1_CaveGrid

Conflicts:
	Assets/MainSceneIce.unity
	Assets/Standard Assets/Materials/iceMaterial.mat
	Library/CurrentLayout.dwlt
	Library/ScriptAssemblies/Assembly-CSharp.dll
	Library/ScriptAssemblies/Assembly-CSharp.dll.mdb
	Library/assetDatabase3
	Library/expandedItems
	Library/shadercompiler-1.log