Merge pull request #21356 from jrburke/bug915643-email-clear-notifications

Bug 915643 - [Email] Clear old notifications once Notification.get is available r=asuth
Merge pull request #22274 from sfoster/bug-1038630-tutorial-redux

 Bug 1038630 - Split Tutorial init into init, start methods. r=fcampo
Bug 1037500 - Adding perf helper to clock app to fix performance tests
Merge pull request #22183 from jrburke/bug989810-email-top-action

Bug 989810 - [User Story] Email - Quick-to-Top action r=mcav
Bug 1045922 - [email] quick tap on message in list after first load sometimes does not work
Merge pull request #22281 from jrburke/bug1045922-email-quick-tap

Bug 1045922 - [email] quick tap on message in list after first load sometimes does not work r=mcav
Bug 1041967 - [Messages] do some safe lazy load to improve launch latency. r=julienw
Bug 1041467 - [MTBF] App only covers top half of the screen
Bug 1032024 - Fix jshint error for build/preferences.js
Merge pull request #22236 from xfq/Bug1032000

Bug 1032000 - Fix jshint error for build/config/payment-prefs.js r=@yurenju
Merge pull request #22286 from xfq/Bug1032024

Bug 1032024 - Fix jshint error for build/preferences.js r=@yurenju
Bug 1020779 - Adjust the key alignment for the bottom row of keyboard.
 - Also modify the tests for correct promise pattern
Merge pull request #22235 from cctuan/1041467-M

Bug 1041467 - [MTBF] App only covers top half of the screen
Bug 906580 - [email][l10n][meta] Support dynamic language changes by setting data-l10n-id and data-l10n-args on all dynamic nodes. r=asuth
Merge pull request #22204 from RudyLu/keyboard/Bug1020779-bottom_keys_alignment

Bug 1020779 - Adjust the key alignment for the bottom row of keyboard.
r=timdream.
Bug 1040406 - dismiss current permission dialog once attentionscreenshow event is got
Revert "Merge pull request #22204 from RudyLu/keyboard/Bug1020779-bottom_keys_alignment"

This reverts commit 1dd9769ebfc90ce02dca843dedd3e8a173a0454c, reversing
changes made to cc5af5e8130ad81fda59b49d8213fbd67e1a0ddd.
Merge pull request #22177 from steveck-chung/message-safe-lazyloader

Bug 1041967 - [Messages] do some safe lazy load to improve launch latency. r=julienw
Merge pull request #22232 from TheoChevalier/whatsnew-l10n

Bug 1045345 - What's new screen is not localized. r=fcampo
Merge pull request #22280 from eliperelman/bug-1037500-add-helper-for-clock-tests

Bug 1037500 - Adding perf helper to clock app to fix performance tests. r=mcav