Bug 913784 - Language selection should also enable associated built-in
keyboard layout(s).
 - handle default layouts resetting
 - add unit test for changeDefaultLayouts
Merge pull request #13342 from RudyLu/settings/Bug913784-language_keyboard_mapping

Bug 913784 - Language selection should also enable associated built-in
r=gnarf, arthur
 Bug 935979 - [keyboard] Intermittent Travis unit test failure: jspinyin various issues
 - extend the timeout to 10 secs
Merge pull request #13541 from RudyLu/keyboard/Bug935979-Intermittent_jspinyin_error

 Bug 935979 - [keyboard] Intermittent Travis unit test failure: jspinyin...
r=me, a=test-only
Bug 936157 - [Messages] Bug 928821 breaks the desktop mock r=schung
Bug 931550 - Clock and Mail app only have rocket icon on homescreen, can't launch/broken