Bug 875463 - Part 0. Remove plain-loop.html and fix --repeat for single tests. r=jmaher
Bug 875463 - Implement --run-until-failure option for mochitests. r=jmaher
Bug 875737 - Add androidx86.json to mochitests. r=jmaher DONTBUILD
Backed out changeset dc96b4762676 (bug 875402) because of crashtest leaks
Bug 868742 - Use scroll(Left|Top)Max to detect scrollable elements. r=mfinkle