Bug 847593 - Remove tab-browser
Implement toolbar API.
Merge pull request #1307 from Gozala/bug/toolbar@787390

Bug 787390 - Toolbar & Frame API implementations. r=@ZER0
Merge pull request #1328 from erikvold/847593

Bug 847593 - Remove tab-browser r=@gozala
Bug 951317 - Split Button API in ActionButton and ToggleButton
Merge pull request #1327 from ZER0/button/951317

fix Bug 951317 - Split Button API in ActionButton and ToggleButton r=@gozala
Fix regression from #1327 r=@jsantell
Hotfix regression introduced by #1299 a=@gozala
Bug 913559: Use parent loader's console when another isn't provided.
Filter out deprecation messages from tabs tests.