Merge pull request #16580 from nullaus/bug975850-cards-view-stack-manager

bug 975850
Bug 975697 - Camera autofocus is not respected anymore
Revert "Bug 971648 - Add warning message if there is no"

This reverts commit b8e0bb360d369e7f1bbcf13a6f8d34abd74a0c63.
Merge pull request #16112 from gasolin/issue-968679

Bug 968679 - [settings] add marionette test for Sound panel, r=arthur
Bug 973512 - only build once for "marionette_js_stable_check" action
Merge pull request #16598 from alivedise/bugzilla/962352/do-not-restore-caller-on-home-button

Bug 962352 - restore the caller only when activity callee is active, r=timdream
Bug 956642 - [Settings] add marionette for language change

- add marionette test for language
Merge pull request #16440 from EragonJ/bug-973512

Bug 973512 - only build once for "marionette_js_stable_check" action
Merge pull request #16351 from gasolin/issue-971625

Bug 971625 - [settings] refactor marionette test for support panel
Bug 962328 - [SMS] The keyboard does not automatically appear when composing a new SMS r=schung
Merge pull request #16559 from timdream/keyboard2-keyboard

Bug 975963 - Split keyboard.js into instancable KeyboardApp() and boot.js, r=rudyl
Bug 968050 - Erase backward compatibility codes for Bug 791506
Bug 974935 - Intermittent test_homescreen_delete_app | test_homescreen_launch_app
Bug 973864 - [Everything.me] Set Collection background image as wallpaper only works on first tap [r=ranbena]
Merge pull request #16289 from borjasalguero/fix_sms

Bug 962328 - [B2G][SMS] The keyboard does not automatically appear when composing a new SMS r=schung
Merge pull request #16612 from AndreiH/bug_974935

Bug 974935 - Intermittent test_homescreen_delete_app | test_homescreen_l...
Bug 975917 - [Everything.me] Tapping homebutton while in Collection Rename mode may cause freeze [r=ranbena]
bug 976190, add Lithuanian (lt), f=rq, r=kaze
Bug 976215 - [System] Make utility tray invisible.
Bug 976152 - Move test-agent off of npm r=lightsofapollo