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

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https://hg.mozilla.org/integration/gaia-central/rev/e3077da93a79
Author: Yuren Ju <yurenju@gmail.com>
Desc: Merge pull request #11804 from yurenju/settingsJS

Bug 904068 - Implement build/settings.py in javascript r=timdream

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https://hg.mozilla.org/integration/gaia-central/rev/c9a6ee3df84f
Author: Yuren Ju <yurenju@gmail.com>
Desc: Bug 904068 - Implement build/settings.py in javascript
Bumping gaia.json for 2 gaia-central revision(s)

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https://hg.mozilla.org/integration/gaia-central/rev/5ee261f99201
Author: Dale  Harvey <dale@arandomurl.com>
Desc: Merge pull request #11807 from cctuan/bug909991

Bug 909991 - Labels in browser settings are so small it's hard to read. r=daleharvey

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https://hg.mozilla.org/integration/gaia-central/rev/dec92b33adc3
Author: cctuan <georgeiscoming@gmail.com>
Desc: Bug 909991 - [Helix] Labels in browser settings are so small it's hard to read