Add comment to function call.
rename files from OculusRift to OculusWindow
remove OculusDeviceManager
reflect name change internally in files
remove oculus rotation from oculus-example
change oculus-example to use OculusSDK to fetch rotation matrix.
Bullet is required.
Merge branch 'feature/ovrWindow' of https://github.com/el-josho/guacamole into el-josho-feature/ovrWindow