Merge pull request #19526 from ian-liu/bluetooth/bug996272_revise_incorrect_using_mozl10n_api_in_bluetooth_app

Bug 996272 - Clean up mozL10n API use in bluetooth, r=@crh0716
Merge pull request #19731 from crdlc/bug-1007295

Bug 1007295 - Implement native scrollbar for vertical homescreen
Merge pull request #19751 from evanxd/bug-950673

Bug 950673 - 150+ ms launch regression in gallery, video, camera, email_ftu (Dec 10-13), r=etienne
Merge pull request #19735 from KevinGrandon/bug_1016854_contacts_test

Bug 1016854 - [Contacts] Intermittent MarionetteJS failure on Travis: Contacts > Delete > Edit menu is not visible on search mode
Bug 963109 - [Messages] Multi-recipient participants view should show back button instead of cross one
Merge pull request #19733 from KevinGrandon/bug_1013859_ftu_geolocation_state

Bug 1013859 - [v2.0] Geolocation disabled by default in FTU app
Merge pull request #19728 from zacc/bug_1005272

Bug 1005272
Bug 1017360 - [Vertical] Dragdrop improvements r=crdlc
Bug 993236 - [dsds] Access Cellular & Data setting (Two SIM inserted)
Bug 1017465 - [Building Blocks] create Object Menu BB
Bug 951606 - [Dialer] Call screen visual refresh 2.0
Merge pull request #19684 from justindarc/bug988651

Bug 988651 - [Camera] New sound needed for self-timer countdown
Bug 995187 - [1.4]Call log is not showing the full phone number
Bug 1016822 - [Vertical Homescreen] Implement the RocketBar & status bar visuals properly
Bug 999503 - Get tests running on Flame; disable test that needs two SIMs a=testonly
Bug 1017695 - Repair wait in Usage app FTU object for Flame compatibility
Bug1015448 - [Wallpaper] - Fix wall paper file types and sizes r=patryk
Bug 1015427 - sort the find output for the list of apps.
Merge pull request #19276 from gtorodelvalle/dialer-bug-951606-call-screen-visual-refresh

Bug 951606 - [Dialer] Call screen visual refresh 2.0
Bug945776 - [Gallery] - Fix for edgue gesture conflict with crop handles r=djf