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

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https://hg.mozilla.org/integration/gaia-central/rev/ae5c91472271
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Merge pull request #21721 from mikehenrty/bug-1034657-take2

Bug 1034657 - remove gaia-confirm listeners when in edit mode r=kgrandon

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https://hg.mozilla.org/integration/gaia-central/rev/7d20cc2b1473
Author: Michael Henretty <michael.henretty@gmail.com>
Desc: Bug 1034657 - remove gaia-confirm listeners when in edit mode
Bumping manifests a=b2g-bump