Bug 830669 - Fix tab close icon alignment. r=benfrancis
Merge pull request #8212 from daleharvey/830669-close-tabs

Bug 830669 - Fix tab close icon alignment. r=benfrancis
Merge pull request #8214 from borjasalguero/change_callback

Bug 843066 - [SMS] Callback in 'appendThreads' is not working properly r...
Bug 840497 - [SMS] Fix & restore Unit Tests r=julienw
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