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

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https://hg.mozilla.org/integration/gaia-central/rev/10e6f9fa95da
Author: Julien Wajsberg <felash@gmail.com>
Desc: Merge pull request #10645 from cvan/marketplace-update

update Marketplace app to get new store ID (bug 887034)
r=julien

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https://hg.mozilla.org/integration/gaia-central/rev/7edd573618e1
Author: Chris Van <cvan@mozilla.com>
Desc: update Marketplace app to get new store ID (bug 887034)