Updating JRift to LibOVR 0.2.3
Fiing sync-public.sh on OSX
Install pulls down LWJGL 2.9.0
Some fixes and additions to 'back of head' pos track.
Fix changing mouse cursor when from hydra->mouse
Improve progress indicators during Oculus calibration
Support Oculus SDK 0.2.3
Ensure consistent calibration order of peripheral devices. Closes #42.