Bug 999553 - Reenable most disabled unit tests on TBPL r=jgriffin
Bug 997338 - Fixed comments and null-check in fromUTF8().
Bug 997701 - Create a new AudioContext each time the TonePlayer changes channel.
Bug 999569 [NFC] Initialization test cases for NfcManager
Bug 1000334 - Adjust b2g_start to work for v1.3 as well
Bug 1000047 - Hardening the callscreen against a transition end race.
Bug 988080 - Update copy for FxA FTE post-signup screen r=arcturus
Bug 951084 - Visual refresh for today button.
Bug 1002247 - [System2] AppAuthenticationDialog fixes r=alive
Bug 1002264 - [System] Remove System.publish function r=alive
Bug 999413 - clean useless files when execute make
Bug 949457 - Make Compose into a flex layout r=julienw
Bug 1001370 - Add a new type of shared element (pages) for the build system
Bug 1002465 - test_browser_play_you_tube.py - wait for the elements to be displayed rather than present
Merge pull request #18646 from julienw/999553-reenable-most-disabled-unit-tests-disable-render-test

Bug 999553 - Reenable most disabled unit tests on TBPL r=jgriffin
Merge pull request #18651 from bobsilverberg/b2g_start_v1.3

Bug 1000334 - Adjust b2g_start to work for v1.3 as well
Bug 997053 - [Messages] Update @2.25x assets for attachment placeholders and move it to the correct place. r=julien
Merge pull request #18720 from KevinGrandon/bug_1002247_system2_app_authentication_dialog

Bug 1002247 - [System2] AppAuthenticationDialog fixes r=alive
Merge pull request #18747 from zacc/bug_1002465

Bug 1002465 - test_browser_play_you_tube.py - wait for the elements to b...
Merge pull request #16572 from borjasalguero/composer_flex

Bug 949457 - Make Compose into a flex layout r=julienw