Bug 843980 - Switch tests to check for category entries, not service existence. r=mconnor
Bug 727765 - part 1 - use nsIDOMWindowUtils.getScrollbarWidth() to avoid black borders at the right; r=jaws
Bug 727765 - part 2 - let Panorama use PageThumbs to draw screenshots to TabCanvases; r=jaws
Merge fx-team to m-c.
Merge services-central to m-c.