Bug 1054140 - Early return when navigating to the same panel
Bug 1053684 - [Clock] The Alarm sound volume is set at maximum after some common operations
Bug 1045236 - contacts import screen has a strange notion of "TODAY", which includes yesterday
Bug 1049489 - gaiatest: execute all ContactsAPI calls in chrome context
Bug 1038815 - Contacts can get into a 'frozen' state in some cases
Make gecko recording errors display a generic error message instead of nothing
Fix copy and paste error (and source) for error callback prototype
Bug 1054333 - Create Firefox OS test job for testing phone specific features per checkin
Add brief comment clarifying why we ignore err param
Bug 800402 - [email/backend] UI: Show the number of unread messages in the message-list header after the folder name. r=asuth

Land the back-end parts of bug 800402 and bug 888955 which it depends on.
The UI parts are separable and we're landing the back-end stuff on its own to
avoid back-end bit-rot.

The changes in here exactly correspond to those in:
https://github.com/mozilla-b2g/gaia-email-libs-and-more/pull/328
Bug 1040712 - [System] use same silent style icon for status bar and sound manager
Bug 1055908 - Add missing unit-tests for bug 1035117
Bug 1026698 - (2.0-visual-refresh)[Ringtones] Add & Set New System Notifications
Bug 1055951 - [Flame][v2.1] test_settings_wifi.py :: Element cannot be found and cannot connect to specific network failed
Bug 973449 - [settings] refactor Do not track panel with AMD pattern
Merge pull request #23016 from gasolin/issue-973449

Bug 973449 - [settings] refactor Do not track panel with AMD pattern, r=eragon
Merge pull request #23068 from viorelaioia/bug_1055951

Bug 1055951 - [Flame][v2.1] test_settings_wifi.py :: Element cannot be f...
 Bug 1055972 - disable keyboard uninstallation test.
  - apps/keyboard/test/marionette/uninstallation_test.js
Merge pull request #23064 from mnjul/bug_1055908_add_missing_test_for_1035117

Bug 1055908 - Add missing unit-tests for bug 1035117. r=timdream
Bug 1043892 - [LockScreen] Solve the visual regression caused by Bug 1043821, with panel switching refactoring