Bug 1026022 - Check that string is UTF8. r=mcmanus, a=1.4+

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extra : rebase_source : ec8465f6b4e1f02879b8aad8db46d794e110771a
Bug 1027359 - Fix incorrect codegen in ma_mod_mask. r=mjrosenb, a=1.4+

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extra : rebase_source : 3cb251faa4749398eb0898781bf72d2b35a246c3
Bug 1033121 - Release |mTimer| in nsTimerEvent::Run() instead of ~nsTimerEvent() to avoid race. r=bz, a=1.4+

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extra : rebase_source : d498670b063dcc29a79532335a45f243e70fa585