linuxmint/Cinnamon — pull request #1135 by mtwebster (2012-09-15 05:13:15+00:00)
Title: Fix crashing of muffin when monitor layouts or primary monitor is changed

Affects:

#810
#329
#302

DO NOT MERGE YET

Still needs some work to make smooth transitions between monitor layouts, but this prevents ugly crashes and allows relayout of monitors using either the gnome-control-panel or proprietary video card configurators.