This is the newest version that doesn't lead to compile errors. It has
also reduced the amount of "-Wexpansion-to-defined" errors on clang-msvc
by about 80 (from ~400 to 320).
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.