Bug 1038606 - 2.a/4: Move nsIGonkTelephonyService.idl -> gonk/nsIGonkTelephonyService.idl
Bug 1038606 - 2.b/4: implement TelephonyService for FxOS simulator
Bug 1038606 - 2.c/4: Add devtools RDP support for telephony service
copy RILContentHelper.js
Bug 1038606 - 4/4: Simulator icc/mobileconnection/cellbroadcast/voicemail backends
Add "Voice Calls" tab to App-Manager.