Bumping gaia.json for 9 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/849cd3df00be
Author: Jim Porter <jporter@mozilla.com>
Desc: Merge pull request #21007 from jimporter/ringtones-validate

Bug 1017421 - [ringtones][Flame only] previewing ringtones doesn't stop ...

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https://hg.mozilla.org/integration/gaia-central/rev/89a011c5c189
Author: Jim Porter <jporter@mozilla.com>
Desc: Bug 1017421 - [ringtones][Flame only] previewing ringtones doesn't stop when tapped again

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https://hg.mozilla.org/integration/gaia-central/rev/ecc7b8a112d6
Author: Dave Hunt <dave.hunt@gmail.com>
Desc: Bug 1028254 - Bump marionette client dependency to 0.7.10. r=ahalberstadt

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https://hg.mozilla.org/integration/gaia-central/rev/9759ecc939e6
Author: Pavel Ivanov <pivanov@mozilla.com>
Desc: Bug 1027112 - [Homescreen] New wallpaper to replace current grass wallpaper r=vingtetun

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https://hg.mozilla.org/integration/gaia-central/rev/9c1138f6d124
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Revert "s"

This reverts commit 4218fa3b54d7834d27285d59b80b8d34ec8149d8.

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https://hg.mozilla.org/integration/gaia-central/rev/44468fd789ec
Author: Pavel Ivanov <pivanov@mozilla.com>
Desc: Merge pull request #20714 from pivanov/bug-1027112

Bug 1027112 - [Homescreen] New wallpaper to replace current grass wallpaper

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https://hg.mozilla.org/integration/gaia-central/rev/7c2dad9c850e
Author: Pavel Ivanov <pivanov@mozilla.com>
Desc: s

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https://hg.mozilla.org/integration/gaia-central/rev/8f99f4999cde
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Merge pull request #21000 from lightsofapollo/faster-homescreen-removes

Bug 1029891 - Remove items from the homescreen async without activities.

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https://hg.mozilla.org/integration/gaia-central/rev/b6248c94c634
Author: James Lal <james@lightsofapollo.com>
Desc: Bug 1029891 - Remove items from the homescreen async without activities.
Bumping manifests a=b2g-bump