Bug 979134 (follow-up): convert test_call_barring_change_password.js to Promise. r=vicamo
Bug 979134 (follow-up): convert test_call_barring_get_option.js to Promise. r=vicamo
Bug 979134 (follow-up): convert test_call_barring_set_error.js to Promise. r=vicamo
Bug 979134 (follow-up): convert test_mobile_icc_change.js to Promise. r=vicamo
Bug 979134 (follow-up): convert test_mobile_last_known_network.js to Promise. r=vicamo
Bug 979134 (follow-up): convert test_mobile_set_radio.js to Promise. r=vicamo
Bug 979134 (follow-up): convert test_mobile_signal_strength.js to Promise. r=vicamo