bug 856977. Alert should not be possible from beforeunload. r=bbondy,bz
bug 910501. Remove the rate-limiting behavior of the "Prevent this page from creating additional dialogs" checkbox. That behavior was unintentionally added and is confusing. r=bz,gavin
Bug 924285 - Remove VirtualRegister's id field. r=bhackett
Bug 923913 - Make Element.inner/outerHTML [Pure], r=bz

--HG--
extra : rebase_source : 81556c5031279cee3f33639a47f4fb83e2743403