Add include to vrcontenttransform.cpp to compile in MSVC2010
Fail to track Oculus Rift input pitch/yaw.
Merge branch 'oculus-rift' of https://github.com/skyjake/Doomsday-Engine into oculus-rift

Conflicts:
	doomsday/client/src/ui/dd_input.cpp
Implement Oculus Rift primary pitch head tracking control.
Use accessor function instead of global variable for VR::mode
Create CVAR rend-vr-rift-aspect
Use Oculus Rift aspect retio in projection matrix in Rift mode, regardless of apparent screen resolution.
Create a CVAR for Oculus Rift horizontal field of view angle.
Adjust Rift mode to have a readable font size in taskbar
Update camera field of view in Rift mode, for correct culling
TODO - set it back when leaving Rift mode
Correct view fovy calculation in projection matrix.
Include pitch in late-scheduled update.
Add basic yaw head tracking
Stereo 3D|Client:Apply Rift latency prediction
Avoid changing (late scheduled) view direction between left and right eye views.
Late schedule Yaw, but only if it seems that only head tracker is moving Yaw.
Head Tracking|Client|Renderer: Improve Yaw late scheduling by comparing to uninterpolated target angle, and by minding circularity of angle differences.
Double size of Oculus Rift offscreen texture in each direction, so resolution is better at center, after warp.
Include "de_platform.h" per DaniJ suggestion.
Stereo 3D|Oculus Rift|Client|Renderer: Modify TODO comment
Merge branch 'oculus-rift' of https://github.com/skyjake/Doomsday-Engine into oculus-rift
Merge branch 'oculus-rift' of https://github.com/skyjake/Doomsday-Engine into oculus-rift

Conflicts:
	doomsday/client/src/ui/vrcontenttransform.cpp
Merge pull request #6 from cmbruns/oculus-rift

Oculus rift