Bug 1018335 - removeFocus() when the screen is locked
Bug 1020628 - Don't allow user to start activity twice in keyboard settings
Bug 1021133 - make getFontWidth fontStyle aware
Bug 1022331 - Headers are not properly resized in Clock
Bug 1006413 - [Music] also resume the player when the status before SCO is mozinterruptbegin
Bug 998100 - [Settings] add new localized string for dial pad
Bug 1020115 - Lockscreen Visual Refresh follow-up
Bug 1010025 - Add integration test to cover 3rd-party IME Switching.
 - Separate system app related part to lib/system.js
Merge pull request #20122 from dominickuo/bug-1006413

Bug 1006413 - [Music] also resume the player when the status before SCO is mozinterruptbegin, r=jimporter
Merge pull request #20163 from mikehenrty/bug-1021133-fontstyle

Bug 1021133 - make getFontWidth fontStyle aware
Merge pull request #19091 from dominickuo/bug-998100

Bug 998100 - [Settings] add new localized string for dial pad, r=EragonJ
Merge pull request #20191 from gmarty/bug-1022331-Headers-not-resized-in-Clock

Bug 1022331 - Headers are not properly resized in Clock
Merge pull request #20126 from timdream/keyboard-dbltap-back

Bug 1020628 - Don't allow user to start activity twice in keyboard settings, r=rudyl
Merge pull request #20121 from timdream/keyboard-hide-lock

Bug 1018335 - removeFocus() when the screen is locked, r=rudyl
Merge pull request #20137 from mnjul/bug_1020115_lockscreen_vis_refresh_followup

Bug 1020115 - Lockscreen Visual Refresh follow-up [r=gweng]
Merge pull request #19619 from RudyLu/keyboard/Bug1010025-IME_switching_test

Bug 1010025 - Add integration test to cover 3rd-party IME Switching.
r=evanxd.
Revert "Bug 1020134 - Add backgrounds to pre-defined collectionsBug 1020134 - Add backgrounds to pre-defined collections"

This reverts commit 054e1c6852a0fefcff08448792cf987e9aef9c6e.
Merge pull request #20216 from crdlc/bug-1020134-revert

Bug 1020134 revert
Bug 1021391 - [VsD Refresh] Lockscreen Visual Refresh > Unlock icon too low