Merge pull request #22867 from yurenju/pull/22765

Bug 1002545 - Switching to b2g desktop builds r=yurenju
Merge pull request #22854 from dholbert/1050431-remove-lines

Bug 1050431: Remove unnecessary 'flex' decls from video.css (equivalent to default values). r=djf
Merge pull request #22757 from gasolin/issue-1035775

Bug 1035775 - [B2G][System] support 24 hour time format, r=alive
Revert "Merge pull request #22867 from yurenju/pull/22765"

This reverts commit 5f51ff804b815033cd71e750c52cf19fd3950f29, reversing
changes made to 67f0e561b524f1e80468e9536a65cd7db6fcb8cb.
Bug 1054122 - There are still some redundant BT code in settings app
Bug 1047645 - Use manual timeout to guard _closed event from not firing r=alive
Merge pull request #22902 from KevinGrandon/bug_1047645_app_window_miss_transition

Bug 1047645 - Use manual timeout to guard _closed event from not firing
Bug #1038064 - dialer shows .... in starting of number while making MO call to a long number. r=etienne
Bug 1001312 - [meta] [Settings] Device Information UX update
Merge pull request #22873 from gasolin/issue-1001312

Bug 1001312 - [meta] [Settings] Device Information UX update, r=eragon
Merge pull request #22907 from ian-liu/settings/bug1054122_remove_redundant_BT_code_in_settings_app_since_rebase_missed

Bug 1054122 - There are still some redundant BT code in settings app, r=arthur
Bug 1054132 - [Settings] simplify hour12 detection way
Bug 1001629: email notification clear triggers failure in startup
Bug 1053976 - [B2G][E.me] Searching 'Social' does not display E.me apps
Bug 1045523 - customize default window size of responsive web design
Bug 1016818 - [Bluetooth] Update to use gaia-header
Bug 1035680 - [FTU] - check missing images
Bug 1035754 - [Gaia][lock screen] support 24 hour time format
Bug 1048228 - Set the last used keyboard as default after restart of the phone
Merge pull request #22870 from snowmantw/issue1035754

Bug 1035754 - [Gaia][lock screen] support 24 hour time format