Viewport 3D: support for Volume drawing for Advanced Setup (Multi-View) too

(and flipped red-cyan volume colors to match what you see from the
camera)
Rename 'Basic Stereo'/'Advanced Stereo' to 'Stereo 3D'/'Multi-View'
Missing file from the last renamse (basic stereo > stereo 3d / advanced stereo > multiview)
Change Viewport "stereo 3d" option for Multi-View scene setup

This may not be clear enough, and I still want to run this by Francesco Siddi. But basically the idea here is that when using the Multi-View option you should only get the option to see the "Stereo 3D" (when there is a left and right cameras) or the "views" which is the current selected view
Merge remote-tracking branch 'origin/master' into multiview

Conflicts:
	release/datafiles/locale
	source/blender/blenloader/intern/versioning_270.c
Fix for crashes on release build when rendering, big kudos for Lukas Toenne
Merge remote-tracking branch 'origin/master' into multiview

Conflicts:
	source/blender/blenkernel/intern/image.c
	source/blender/blenloader/intern/versioning_270.c
	source/blender/editors/sculpt_paint/paint_image_proj.c
	source/blender/editors/space_image/image_buttons.c
	source/blender/editors/space_image/image_ops.c
	source/blender/editors/space_view3d/view3d_draw.c
	source/blender/makesdna/DNA_image_types.h
	source/blender/makesdna/DNA_userdef_types.h
	source/blender/makesrna/intern/rna_image.c
	source/blender/makesrna/intern/rna_render.c
	source/blender/render/extern/include/RE_pipeline.h
	source/blender/render/intern/source/pipeline.c
	source/blender/render/intern/source/render_result.c