Merge pull request #19382 from flodolo/bug1012668

Bug 1012668 - Use escaped backslash \\ in setup-manual-activesync-username. r=asuth
Bug 979457 - [camera] 'ready to use' perf measurement
Bug 999138 - Clean up bootstrap mozL10n API use in Clock
Merge pull request #18500 from zbraniecki/999138-clock-mozl10n-api-cleanup

Bug 999138 - Clean up bootstrap mozL10n API use in Clock. r=mcav
Bug 1003060 - [VR][Messaging] Empty circle to the right in messages without recipient
Bug 1009188 - [STK] No help info required (code 13) terminal response is sent back when we click on Help button from the GET INKEY prompt, r=vingtetun

Revert "Revert "Merge pull request #19236 from frsela/STK/Bug1009188""

This reverts commit 4c45650b6f8747890eba858c954afa612d6a9284.
Bug 1010742 - Improve performance in dragdrop r=kgrandon
Bug 935260 - Rework cards view as TaskManager and Card/TaskCard classes. r=alive

* Implement and use transform method on AppWindow
* Implement unapplyStyle, move settings change observer to registerEvents
* Use rocketbar.enabled setting to toggle isRocketbar property; unit test same
* More unit tests for isRocketbar behavior, testing setActive, hide
* allowManualClosing property to allowSwipeToClose, get rid of unused inTimeCapture, lastInTimeCapture
* Move opacity, transition, scale constants to card prototype. Use card.applyStyle to avoid touching the element.style directly. Fix pointer-events so current card should always be clickable. Fix adjacent card positioning so they occupy the 25% at the edge
* Adding unit tests for AppWindow apply/unapplyStyle, enter/leaveTaskManager and transform methods
* Add unit tests for card.destroy and taskManager.closeApp
* Adjust swipe_to_previous_app in cards_view ui-tests to start swipe from center
* Avoid side-effects when returning early from taskManager.show() (bug 999658)
Bug 1010407 - Move Developer HUD to new devtools system app module. r=21
Merge pull request #19258 from zbraniecki/1009134-remove-dataset-l10n

1009134 - Transition away from using dataset.placeholder to localize placeholder. r=felash
Bug 1011118 - [FTU] Implement gaia-switch component r=arcturus
Bug 1012779 - [Camera] Enable touch to focus by default
Merge pull request #19393 from dmarcos/bug1012779

Bug 1012779 - [Camera] Enable touch to focus by default
Merge pull request #19255 from jankeromnes/devtools

Bug 1010407 - Move Developer HUD to new devtools system app module. r=21
Bug 999132 - Improve and document the use of mozL10n API in camera app. r=wilsonpage
Merge pull request #19339 from mcav/timer-fix

Bug 1009977 - [B2G][Clock] The seconds portion of the timer inconsistent...
Bug 991865 - [System][Dialer] Display an error message when calling voicemail fails due to no number set. r=rik
Bug 986062 - Adding an integration test making sure we don't reflow during edge gestures. Take #2.
Bug 1012507 - Perma failing test, month view #months-day-view scroll
Merge pull request #18377 from sfoster/task-manager

Bug 935260 - Refactor cards view to be instantiable, enable new task-manager look/feel and behavior behind HAIDA=1 build flag. r=alive