Bug 1100390: Create a new test case for the deletion of video from Preview

New wait syntax used
method name changed to is_video_play_button_visible from is_preview_visible
Bug 1107976 - [Stingray][System] handle app to landing app opening.
Bug 1107284 - remove callbacks from focus.js as well
Bug 1108578 - Try waiting for sendKeyButton to be displayed r=rudyl
Bug 1108854 - Remove border from focused button
Bug 1107926 - Update cost_control app object to reflect changes in Bug 1089968
Bug 1093589 - [DSDS] Add test to receive phone call on second SIM
Bug 1109068 - Fix group background animation in non-edit mode. r=kgrandon
Bug 1109089 - Make sure `cardviewclosed` is broadcasted properly to app windows.
So that the screenshots are properly unloaded.
Merge pull request #26639 from bebef1987/fix_cost_control

Bug 1107926 - Update cost_control app object to reflect changes in Bug 1...
Merge pull request #26041 from JohanLorenzo/bug-1093589

Bug 1093589 - [DSDS] Add test to receive phone call on second SIM
Merge pull request #26615 from npark-mozilla/1100390_2ndAttempt

Bug 1100390: Create a new test case for the deletion of video from Preview
Merge pull request #26663 from mikeaich/bug1107284_2

Bug 1107284 - remove callbacks from focus.js as well, r=wilsonpage
Bug 982839 - Write a test to protect against the regression seen in bug 981804 (navigate out of fullscreen video)
Merge pull request #26605 from mwargers/fullscreen2

Bug 982839 - Write a test to protect against the regression seen in bug ...
Bug 1109089 - merge pull request #26674 from etiennesegonzac:bug-1109089 to mozilla-b2g:master
Bug 1094144 - Add a test that ensures test_play_*_video has the correct audio channel opened
Merge pull request #26672 from Cwiiis/bug1109068-group-bg-animation

Bug 1109068 - Fix group background animation in non-edit mode. r=kgrandon
Merge pull request #26665 from KevinGrandon/bug_1108854_chrome_button_outline

Bug 1108854 - Remove border from focused button r=etienne
Bug 1108578 - merge pull request #26664 from KevinGrandon:bug_1108578_uninstallation_test_wait to mozilla-b2g:master