Bug 1055104 - Theme switching panel

This patch adds a Theme switching panel in the Settings app.
Bug 1061118 - Dismiss keyboard on attention window requestopen or recovering
Bug 1055446 - NFC: log visibly errors in nfc related files, r=gweng
Bug 947352 - [B2G][Contacts] Magnifying glass search icon on scroll list in contacts app does not function
Bug 1060236 - Fix failure in test_cards_view_with_two_apps.py
Bug 1045662 - List all possible strings for easier localization
Bug 1060274 - Fix l10n issues of apn settings
 Bug 934209 - support multi-row for key popup.

1. To address UI review comments about the interaction.
   - Enlarge the menu lock area.
   - Keep to select the last/first element when moving out of the menu
     edge.
2. Fix the vertical position for landscape mode.

3. Code review comments
 - Update the naming of menu view
 - Refine the menu related instances that manager holds
 - Fix integration test and unit tests.

4. UI - To address UI review comment for edge case.
Bug 1061441 - [Vertical Home] Long bookmark name appears as partly cut from right side
Bug 1032675 - [System] upgrade the new default tones for OTA
Bug 942309 - [keyboard] keyboard layout language changes for input type=url and type=email
Bug 1061437 - Revert the patches of embedding BT app in settings app
Bug 1061012 - Fixing the callscreen window visibility and preventing the creation of an audio context at preload.
Merge pull request #23459 from viorelaioia/bug_1060236

Bug 1060236 - Fix failure in test_cards_view_with_two_apps.py
Merge pull request #23597 from dominickuo/bug-1032675-reland

Bug 1032675 - [System] upgrade the new default tones for OTA, r=timdream
Bug 1059224 - [v2.1] Update browser launch method to use manifest url instead of app name
Merge pull request #23553 from ADLR-es/fix-bug-947352

Bug 947352 - [B2G][Contacts] Magnifying glass search icon on scroll list...
Bug 1030390 - improved cards view and taks manager accessibility. r=alive
Merge pull request #23405 from oklang/bug_1055104_theme_switching_panel

Bug 1055104 - Theme switching panel. r=ejchen
Merge pull request #23273 from tauzen/Bug1055446_debug_cleanup

Bug 1055446 - NFC: log visibly errors in nfc relateded files, r=gweng