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

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https://hg.mozilla.org/integration/gaia-central/rev/7c63d2f71b0b
Author: James Lal <james@lightsofapollo.com>
Desc: Merge pull request #12371 from EverythingMe/enhanced-revert

Revert Bug 910316

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https://hg.mozilla.org/integration/gaia-central/rev/c37a4d7a31c8
Author: Ran Ben Aharon <ran@ranbena.com>
Desc: Revert "Bug 910316 - [e.me] Everything.me features in enhanced branch for Firefox OS 1.2 r=crdlc"

This reverts commit cf5ec4a409ea46d37c4a682537006835014e2e7c.