Flushing GL command queue after every frame
glFinish (truely empty GPU queue) before calling pollAll()
Don't do FBO EXT check every time.
Initial changes to optimise distortion shader. Stage 1 - use VBO instead of immediate mode, if available.
Fixing OSX Compat & Adding pitch offset

OSX fix is temporary by disabling ARB_vertex_buffer extension check.
We should clean this codepath up a bit.
Update Optifine tooltips for Minecrift usage.
Texture lookup distortion shader option. HUD lock to view. Improve defaults.
Merge branch 'master' of private-repo
Support supersampling without VBO/VBA.
Fix to allow fullscreen on startup. Set default to fullscreen.
Fix crosshair vertical alignment issue with different player heights.
Save fullscreen mode on each F11 press.
Updating to Oculus SDK  0.2.4
Merge branch 'master' into 1.5.2