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

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https://hg.mozilla.org/integration/gaia-central/rev/dcea641f9b92
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Merge pull request #14881 from KevinGrandon/bug_948314_rocketbar_marketplace_search

Bug 948314 - [Rocketbar] Marketplace App Search r=vingtetun

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https://hg.mozilla.org/integration/gaia-central/rev/5819eb893491
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Bug 948314 - [Rocketbar] Marketplace App Search r=vingtetun