multiview: stereo camera builtin and viewport options
Merge branch 'multiview' into multiview_s3d

Conflicts:
	blender/release/scripts/startup/bl_ui/properties_render_view.py
Merge branch 'multiview' into multiview_s3d
Merge branch 'multiview' into multiview_s3d
multiview: builtin stereo camera - first part for viewport support
multiview: using "stereoscopy" flag to enable/disable 3d in the viewport
+ fix to show only left or right cameras
Merge branch 'multiview' into multiview_s3d_nocam

Conflicts:
	blender/source/blender/windowmanager/intern/wm_stereo.c
Merge branch 'multiview_caminandes' into multiview_caminandes_s3d

Conflicts:
	blender/intern/cycles/blender/addon/ui.py
	blender/release/scripts/startup/bl_ui/properties_render_layer.py
	blender/release/scripts/startup/bl_ui/space_view3d.py
	blender/source/blender/makesdna/DNA_view3d_types.h
	blender/source/blender/windowmanager/intern/wm_stereo.c
fixes from last merge
fixup commit
while we don't refactor image editor, set stereo always on
Merge branch 'multiview_caminandes_s3d' into multiview
Experimental work with builtin stereo camera