Bug 825545 followup - Remove extra comment. r=jorendorff
Bug 825957 - mirror mozcrash 0.3 from github to m-c;r=jmaher

--HG--
extra : rebase_source : 66105fc53438e7cd3e4f1b2dbaacbaa270e02f34
Bug 790039 - Fix some more rooting assertions; r=terrence,sfink
Bug 827539 - Remove unnecessary SkipRoots in the frontend; r=billm