added: first steps at 3d movie support
don't render twice
set proper source rect and aspect radio when rendering video not in fullscreen
disable any stereoscopic related changes when rendering fullscreen video - video is already made stereoscopic, render video only with first render pass
add "3dmode" action to cycle between 3d modes
rename RENDER_STEREO_VIEW values to be more generic
simplify final transformation logic
simplify viewport calcs for stereoscopic views
cosmetics
fix CRenderSystemGL::SetViewPort - needed for correct top by bottom stereo view
Add extra 3D Mode actions.
can configure subtitle depth in Settings

Conflicts:
	xbmc/video/windows/GUIWindowFullScreen.cpp
Fix second pass not getting some updates