Bug 1080883 - Part 1: Add MMICall (webidl). r=hsinyi
Bug 1080883 - Part 2: Augmented MozMMIResult for error result (webidl). r=hsinyi
Bug 1080883 - Part 3: MMICall implementation (dom). r=hsinyi
Bug 1080883 - Part 4: Update test case. r=hsinyi