Bumping gaia.json for 1 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-1_3/rev/f1982f4a4663
Author: Dominic Kuo <dkuo@mozilla.com>
Desc: Merge pull request #16964 from dominickuo/bug-973156-new-2

Bug 973156 - [Music] Send mozinterruptbegin and mozinterruptend to system for show/hide the media playback widget, r=jimporter(cherry picked from commit b83a79969718ea189cdc5cfa55d40fee38c11cb6)

Conflicts:

	apps/system/test/marionette/media_playback_test.js
Bumping manifests a=b2g-bump
Bug 980846 - Second wakeup message does not send the port. r=nsm.nikhil, a=fabrice
Bug 976454 - MozActivity emits ActivityCancelled instead USER_ABORT. r+a=fabrice
Bug 748598 - Implement VolatileBuffer for OSX, Ashmem, and Windows, r=njn,glandium a=mwu
Bumping gaia.json for 2 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-1_3/rev/de085ab7c1c1
Author: Germán Toro del Valle <gtorodelvalle@gmail.com>
Desc: Merge pull request #16910 from gtorodelvalle/contacts-bug-972600-add-contact-after-merging

Bug 972600 - [B2G][Contacts] After merging duplicate contacts selecting edit contact button brings up 'Add contact' screen (r=arcturus)

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https://hg.mozilla.org/integration/gaia-1_3/rev/e8b48d619d33
Author: steveck-chung <schung@mozilla.com>
Desc: Merge pull request #16951 from steveck-chung/Bug-976999

Bug 976999 - [Sora][Message][MMS]Some of the text content lost when forward the MMS. r=julienw
Conflicts:
	apps/sms/test/unit/compose_test.js
Bumping manifests a=b2g-bump
Bumping gaia.json for 2 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-1_3/rev/eddb56d4cc8e
Author: Ryan VanderMeulen <rvandermeulen@mozilla.com>
Desc: Merge pull request #16791 from jaoo/978689

Bug 978689 - [Settings] Fix for() loop in carrier.js file.

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https://hg.mozilla.org/integration/gaia-1_3/rev/2c4ad28930ad
Author: Jose Antonio Olivera Ortega <josea.olivera@gmail.com>
Desc: Bug 978689 - [Settings] Fix for() loop in carrier.js file.
Bumping manifests a=b2g-bump
Merge b2g28 to v1.3t. a=merge