Bug 1023694 - The integration test js/python all failed on 1.4 branch
Travis CI.
 - Stick to b2g30 for v1.4 branch.
Merge pull request #20331 from RudyLu/build/Bug1023694-stick_to_b2g30

Build/bug1023694 stick to b2g30.
r=yurenju.
Bug 1005823 - [Dialer] Fix emergency calls with no SIM card. r=rik
Merge pull request #20127 from DouglasSherk/1017831-intermittent-simsettingshelper

Bug 1017831 - Fix intermittently failing SimSettingsHelper._setToSettingsDB test. r=eragonj
Bug 974381 - Removing transition phase to improve responsiveness of homescreen edit mode