Bug 979938 - Delay the display of the tab close button to avoid visual noise. r=Dao
Bug 885139 - Don't tile LightweightTheme images on the selected tab. r=dao,Gijs
[Australis]
Bug 983270 (part 1) - testonly refactor of FxA tests to make cluster testing easier. r=ckarlof
Bug 983270 (part 2) - _findCluster() should return null on authentication errors. r=ckarlof
Backed out changeset 15516aebd58d (bug 477948)
Bug 980534 - [australis] Make Australis' standalone subview panels wider. r=Unfocused
Merge f-t to m-c
Merge m-c to m-i