Remove the HudColors and just use them directly from Sensors.
vc2012 files updated too.
Merge remote-tracking branch 'fluffyfreak/RemoveHudColors'
fix autotools build
Don't drop ui layers before entering the main loop. #2716

UIView::OnSwitchTo will take care of this for legacy views. If its here,
then we kill whatever UI we just set up before it even gets seen.