Bug 772765 - Conference call - part1 - webidl. sr=sicking, r=bent
Bug 772765 - part2 - Telephony DOM. r=bent
Bug 772765 - part3 - RIL impl. r=vicamo
Bug 772765 - part4 - BT impl. r=gyeh
Bug 772765 - part5 - Telephony DOM - fix unlink crash. r=bent