Bug 824785 - social toolbar buttons should have an aria-label.  r=jaws
Bug 792797 - Handle interrupts in the Yarr interpreter. r=dvander
Bug 838969 - prevent certain social features from working in private windows.  r=gavin
Bug 799709 - Create a 10MB sdcard by default, r=jgriffin
Bug 769872 - Add self-hosted JavaScript core of Intl constructors Collator, NumberFormat, DateTimeFormat (part 6). r=jwalden

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extra : rebase_source : 714d2776e671bf8587c95f2b19b576fb68d957b7