Bumping gaia.json for 2 gaia-central revision(s)

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https://hg.mozilla.org/integration/gaia-central/rev/7f317f4c6c1e
Author: Staś Małolepszy <stas@mozilla.com>
Desc: Merge pull request #11760 from stasm/900504-multilocale-abspaths

Bug 900504 - l10n packaging of gaia broken, doesn't pick up content for apps. r=yurenju

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https://hg.mozilla.org/integration/gaia-central/rev/fa3db71f1623
Author: Staś Małolepszy <stas@mozilla.com>
Desc: Bug 900504 - l10n packaging of gaia broken, doesn't pick up content for apps. r=yurenju