Removing need for github account to checkout
Working on direct3d/opengl interop
Trimming down d3d/gl interop demo
Fixing broken undistorted image example
Fixing some xcode warnings
Updating chapter 9 examples
Tweaking debug-rift mode
Updating subprojects
Moving the destroy window to the dtor, for better multithreading support
Tweaking rift to support different text sizes, also supporting custom manipulation of the application of eye poses
Adding back OpenCV and experimental examples
Updating chapter 9 examples for book work
Moving D3D expreiment to experimental folder
Adding strabismus correction, DK2 version
OpenCV examples and tools
Adding scratch pad app
Fixing OpenCV
Tweaking webcam and fixing d3d interop demo
Merge pull request #34 from jherico/master

Updates from development branch for chapter 9 and experiments