Bug 1060647 - Explicitly import XPCOMUtils in FxAccountsUIGlue.js. r=ferjm

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extra : rebase_source : 791aa4ea49e8430a54eab91d9bb55ba760efbe9d
Bug 1061210 - Update conference group after enumerateCall. r=hsinyi

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extra : rebase_source : 31916415de67bdefed6c7d01a8f9412bd195301e