Adding an ortho camera.
Changing MeshRenderer to derive from a more generic Renderer.
Fixed grid coordinates so that the Z always has the correct sign
Refactoring SceneGraph to be SceneGraph3D, derived from a more generic SceneGraph.
Adding a SceneGraphUi.
Adding hard coded implementations of device width and height in FRAMEWORK::DeviceProperties.
Using actual screen dimensions on iOS.
Merge pull request #16 from VajraFramework/ui

Ui
First pass at a seperate UI camera and a ui scene. Mat's going to love this. ;) (Hash tag, teh monkey)
useless comment removed
Merge branch 'master' into game-script-component

Conflicts:
	VajraFramework/XCodeProject/VajraStaticLibrary/VajraStaticLibrary.xcodeproj/project.pbxproj
Optimizations