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

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https://hg.mozilla.org/integration/gaia-1_3/rev/92c4784b8e74
Author: Cristian Rodriguez <crdlc@tid.es>
Desc: Merge pull request #16938 from crdlc/bug-978011

Bug 978011 - Unload properly Image Loader when syncing/importing
Bumping manifests a=b2g-bump
Bumping manifests a=b2g-bump
Bug 968002 - Reject AddNewProcess from non-Nuwa children. r=bent, a=fabrice
No bug, Automated blocklist update from host bld-linux64-spot-094 - a=blocklist-update
Bug 981166 - Update installer related logic pertaining to the metro browser. r=rstrong, a=relman
Backout bug 878828 - Enable Gamepad API by default. a=lsblakk
CLOSED TREE 4 LIFE
Bumping gaia.json for 1 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-1_3/rev/a25c9d7a0597
Author: steveck-chung <schung@mozilla.com>
Desc: Merge pull request #16982 from steveck-chung/bug-973007

Bug 973007 - [B2G] [Messaging] Keyboard appears when accessing the contact list from the compose message screen. r=julienw
Bumping manifests a=b2g-bump
Merge mozilla-beta to b2g28. a=merge