[B2G] [1.2] [l10n] [Contacts]: Current location header from Facebook contacts is shown in English on every language
Bug 923444 - SV: Power on operator animation runtime customization by SIM
Bug 970929 - Customize network indicator by SIM displayed in Settings:Cellular & Data:Network operator:Network Type
Bug 973864 - [Everything.me] Set Collection background image as wallpaper only works on first tap [r=ranbena]
Add display:flex for fix height 100% on iframe
Bug 976063 - Python - make wait_*_not run faster
Bug 931514 - JavaScript Error: currentCard.addEventListener is not a function r=alive
Bug 977278 - Fixed visible rotating thumbnails when Filmstrip is hidden by hiding overflow.
update to marionette_client 0.7.5, bump version
Bug 971498 - [System2] Instantiable HomescreenLauncher
Bug 971554 - [System2] Instantiable SoundManager
Merge pull request #16593 from dwi2/bug971498

Bug 971498 - [System2] Instantiable HomescreenLauncher
Bug 976413 - [System2] Add start/stop methods to ActivityWindowFactory
Merge pull request #16589 from huchengtw-moz/system/Bug_971554-bubble-tea

Bug 971554 - [System2] Instantiable SoundManager, r=alive
Merge pull request #16602 from luke-chang/976413_start_stop_activity_window_factory

Bug 976413 - [System2] Add start/stop methods to ActivityWindowFactory, r=alive
Bug 977488 - Fix test_ftu_skip_tour.py
Bug 977210 - Factorize the html,body rules. r=alive
Bug 809031 - OOP <iframe> content disappear if placed below 147px inside the system. r=salva
Bug 977209 - Map a preference to a Gaia setting to enable dumping the layers tree. r=fabrice
Bug 964653 - (system-dialog) [Window Management] Implement System Dialog Window

(cherry picked from commit dcebc4a94b3177c8cee5dce1ed4cfa6acd41550c)

Conflicts:
	apps/system/js/bootstrap.js
	apps/system/js/layout_manager.js
	apps/system/test/unit/mock_layout_manager.js