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

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https://hg.mozilla.org/integration/gaia-central/rev/c513fbdbf1b7
Author: Ran Ben Aharon <ran@everything.me>
Desc: Merge pull request #12289 from EverythingMe/enhanced-squashed

Bug 910316 - [e.me] Everything.me features in enhanced branch for Firefox OS 1.2 r=crdlc

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https://hg.mozilla.org/integration/gaia-central/rev/1674d6036283
Author: Evyatar Amitay <evyatron@gmail.com>
Desc: Bug 910316 - [e.me] Everything.me features in enhanced branch for Firefox OS 1.2 r=crdlc