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

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https://hg.mozilla.org/integration/gaia-central/rev/610786d35113
Author: Julien Wajsberg <felash@gmail.com>
Desc: Merge pull request #13072 from julienw/890209-tap-header

Bug 890209 - sms application display dialog when tap a header part r=julien

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https://hg.mozilla.org/integration/gaia-central/rev/0182928b7f9b
Author: at-kitamura <at-kitamura@kddi-tech.com>
Desc: Bug 890209 -sms application display dialog when tap a header part