Bumping gaia.json for 1 gaia-central revision(s)

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https://hg.mozilla.org/integration/gaia-central/rev/d629a442232b
Author: Corey Frang <gnarf37@gmail.com>
Desc: Bug 910345 - [Clock] Create Emitter abstract for events - r=jugglinmike

* Adds new Emitter prototype for use in Clock