Bumping gaia.json for 4 gaia-central revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/dca5b1968d52
Author: gasolin <gasolin@gmail.com>
Desc: Merge pull request #14659 from gasolin/issue-950080

Bug 950080 - add jsdoc generator to gaia, r=timdream

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https://hg.mozilla.org/integration/gaia-central/rev/a8f580858033
Author: gasolin <gasolin@gmail.com>
Desc: Bug 950080 - add jsdoc generator to gaia

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https://hg.mozilla.org/integration/gaia-central/rev/a382eadb472f
Author: Zac <zcampbell@mozilla.com>
Desc: Merge pull request #13701 from viorelaioia/bug-932723

Bug 932723 - Add a test to verify that received SMS are notified to the user

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https://hg.mozilla.org/integration/gaia-central/rev/41e10935117e
Author: Viorela Ioia <viorelaioia@gmail.com>
Desc: Bug 932723 - Add a test to verify that received SMS are notified to the user