multiview: remove "not handled case" message
I found where this is used (when user switches between rendered slots)
multiview: sequencer support 1/?
This brings rect32 to RenderView.
That means monoscopic pipeline should work just like before.
For multiview/stereo I still need to tackle the XXX MV SEQ
(for two things: (1) to compose all views in a strip; (2) to view in stereo)
Merge branch 'multiview' of github.com:dfelinto/blender into multiview