When -desktop is given on the command line then the settings menu is shown on
the desktop instead of an vr overlay.
When -nosound is given on the command line then there are no sound
effects.
Added chaperone profiles
Added separate supersampling sliders for applications/compositor
Added asynchronous reprojection on/off switch
Merged in Microphone Control Overlay
Added Push-to-Talk profiles
Updated to OpenVR 1.0.3
Requires at least SteamVR beta 1477423729.
Robin Appelman
matzman