Bug 913360 - Hard-coded en-US plural in threads with multiple recipients r=borja

Chirurgical patch to use the normal l10n mechanism for plural forms.
Only for v1-train, we already do this on master.
Bug 914493 - [Email] iframe is not resized for the embedded images that were already downloaded while building body. r=asuth, a=blocking-b2g=leo+
Bug 896425 - Add customization support for recording profile
Merge pull request #12060 from asutherland/email-fix-embedded-v1

Bug 914493 - [Email] iframe is not resized for the embedded images that were already downloaded while building body. r=asuth, a=blocking-b2g=leo+
Bug 907127 - [zffos1.1][Contacts][Import from Gmail] Not able to import ...(cherry picked from commit fed3a0f4eabef02a7af25b0081bcbdb582e9bd1e)
Bug 914880 -- Revert "Bug 907127 - [zffos1.1][Contacts][Import from Gmail] Not able to import ...(cherry picked from commit fed3a0f4eabef02a7af25b0081bcbdb582e9bd1e)"

This reverts commit ef10d7ef19064e8f9a2f07b8e8d2a0ebe5dc1343.
bug 914880 -- Revert "Merge pull request #11200 from fabi1cazenave/cellBroadcastLabel-bug890151"

This reverts commit 914a7c748b022d9bab8c8dcd5ebf5acffa93083b.
bug 914880 -- Revert "Merge pull request #10992 from leob2g/Bug_894196_CB_msg_title_error"

This reverts commit 27124565251e6e7cbf8c9772cc9eeee0aabd8c48.
Bug 907127 - [zffos1.1][Contacts][Import from Gmail] Not able to import ...(cherry picked from commit fed3a0f4eabef02a7af25b0081bcbdb582e9bd1e)
(cherry picked from commit ef10d7ef19064e8f9a2f07b8e8d2a0ebe5dc1343)
Merge pull request #10992 from leob2g/Bug_894196_CB_msg_title_error

Bug 894196 - [CB] Disapper the title background alert and need to display. r=daleharvey(cherry picked from commit 9c75c6100df2f70c30a68518ae9a5399b31537c1)
(cherry picked from commit 27124565251e6e7cbf8c9772cc9eeee0aabd8c48)
Merge pull request #11200 from fabi1cazenave/cellBroadcastLabel-bug890151

Bug 890151 - [CB] CH50 message should not be displayed when the Cell Broadcast service is off, r=kaze(cherry picked from commit ad923e915a38394497da682c3024ccc37390b52a)
Merge pull request #12079 from yurenju/recording-customization

Bug 896425 - Add customization support for recording profile
Bug 910579 - Proxy and port values for automatic APN are not set for Movistar Spain SIMs
Merge pull request #12101 from jaoo/910579-v1-train

Bug 910579 - Proxy and port values for automatic APN are not set for Movistar Spain SIMs. r=arcturus
Merge pull request #11720 from rexboy7/fix-bug906981

Bug 906981 - [Lockscreen] Check if mozTelephony exists for desktop build(cherry picked from commit b5a447c963ec165ffb7102c9a53c00d51f10b3a2)
Merge pull request #12033 from lodr/bug-914117-fixing-no-sms-topup-scenario

Bug 914117 - Checking for top up senders existence before parsing
r=jmcf(cherry picked from commit f941936f4570b37445be2a41dbb40bcd0d100cfd)
Merge pull request #12083 from lodr/bug-914636-handling-messages-from-widget

Bug 914636 - Fixing message handler
r=arcturus(cherry picked from commit 986ad07aad596c5006c229e5f2304783f601c4cc)
Merge pull request #11794 from mcirlanaru/bug_908329

Bug 908329 - [Keyboard] Update alternatives menu width logic. r=@davidflanagan(cherry picked from commit 0d226095c9486e45d662d6f5da8ac807e04e17b8)
Merge pull request #12106 from jaoo/911874

Bug 911874 - [zffos1.1][P2][MMS] The DuT does not support size of 500 KB for MMS for one fo the mcc/mnc of Mexico operator. r=kaze(cherry picked from commit f99ee54d9b8a5b182a987ff012e690f1269ecb43)
Merge pull request #12024 from changyihsin/wifiQuickSetting

Bug 908989 - [Buri][WIFI]Can't turn on/off wifi from pull down state bar r=alive(cherry picked from commit 416b129d78addce75f323ebaf286d13e6ff97063)