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

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https://hg.mozilla.org/integration/gaia-central/rev/13f9b7c70028
Author: Florin Strugariu <bebef_1987@yahoo.com>
Desc: Merge pull request #20570 from viorelaioia/bug_1025908

Bug 1025908 - [Flame] Update locator in FTU geolocation checkbox

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https://hg.mozilla.org/integration/gaia-central/rev/49768334f88e
Author: Viorela Ioia <viorelaioia@gmail.com>
Desc: Bug 1025908 - [Flame] Update locator in FTU geolocation checkbox
Bumping manifests a=b2g-bump