Bug 1091166 - Fix the color contrast value when enabling it

The color contrast should also be multiplied by CONTRAST_CAP (0.6)
when enabling the color filter option.
Bug 1090212 - Center Edit picture
Bug 1094450 - Support RTL for ringtones
Bug 1091483 - Unable to show stk dialog (e.g. user confirmation dialog) when foreground app is Callscreen
Bug 1096928 - Address intermittent in test_add_contact_to_favorites.py
Bug 1093131 - Add a test that delete browser's history
Bug 1095619 - Remove misuse of styled aria-hidden
Bug 1091113 - Don't merge obsolete entity fields
Bug 1095369 - [FFOS2.0][Woodduck][Browser]Wallpaper will display when edit bookmark

When changing orientation from portrait to landscape and resizing with keyboard on, the layout manager in the system app will resize the height of the active app first with the keyboard height in portrait (line 55 in layout_manager.js). When the height of the keyboard in portrait mode is bigger than the height in landscape mode, the calculated height of the active app will be smaller than it should've been. The system wallpaper is visible at the mean time. Subsequent resize events later will immediately correct the active app height using the correct landscape keyboard height.

The resizing event sequence is 'resize' --> 'keyboardchange' --> 'keyboardchange'. This patch disables the keyboard height check in the 'resize' event since it'd be incorrect during orientation change, which would display part of the system wallpaper in a flash.
Bug 1093563 - [Flame][v2.1&v2.0][Music]Music time bar operate abnormal when change right-to-left language
Bug 1066243 - [Status Bar][Battery] Battery indicator not always properly updating when charging/disconnecting
Bug 1082675 - Enable homescreen app-grouping permanently. r=kgrandon,crdlc

This reverts commit 071efd0eb9d962d4f96edc28d672e48910f48387.
Bug 1094753 - [Costcontrol] Changing the hash value for '#' does not maintain the correct hash on the app.
Bug 1082675 - Fix divider->group related marionette test failures. r=crdlc,kgrandon

Some assumptions made by marionette tests no longer hold after enabling
app-grouping by default:

- Long-pressing a divider no longer brings up the context menu
- The divider element itself is not positioned (its children are)
Disable cost control tests because of Bug 1061698
Bug 1093692 - Progressbar on fullscreenapps missplaced
Bug 1095902 - Remove the two extra characters
Merge pull request #25993 from BorisChiou/bug-1091166

Bug 1091166 - Fix the color contrast value when enabling it
Bug 1095825 - instead of checking settings app right away, account for all the transitions and wait for it.
Merge pull request #26033 from gmarty/Bug-1066243-Battery-indicator-not-always-properly-updating-when-charging-disconnecting

Bug 1066243 - [Status Bar][Battery] Battery indicator not always properl...