Bug 814581 - Part 2/N: create multiple intances of RadioInterface.
Bug 814581 - Part 3/N: dispatch RIL messages.
Bug 814581 - Part 4/N: fix GonkGPSGeolocationProvider.
Bug 814581 - Part 5/N: fix MobileMessage.
Bug 814581 - Part 6/N: fix test cases.