Bumping gaia.json for 2 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/d329f16c34ba
Author: autolander <bug.autolander@gmail.com>
Desc: Bug 1113792 - merge pull request #26922 from KevinGrandon:bug_1113792_system_strings_permission_autoland to mozilla-b2g:master

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https://hg.mozilla.org/integration/gaia-central/rev/710b54abfe28
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Bug 1113792 - Remove strings from index.html for permission screen r=kgrandon
Bumping manifests a=b2g-bump