Bumping gaia.json for 5 gaia-central revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/ea2106b481f0
Author: Reuben Morais <reuben.morais@gmail.com>
Desc: Merge pull request #11916 from reubenmorais/contacts-webidl

Bug 850430 - Fix users of mozContacts in Gaia to work with the WebIDL interface.

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https://hg.mozilla.org/integration/gaia-central/rev/1dfaa00243e9
Author: Reuben Morais <reuben.morais@gmail.com>
Desc: Bug 850430 - Create Date objects when creating a mozContact from JSON.

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https://hg.mozilla.org/integration/gaia-central/rev/c4f21d5e2312
Author: Reuben Morais <reuben.morais@gmail.com>
Desc: Bug 850430 - Fix mock mozContact to conform to the new interface.

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https://hg.mozilla.org/integration/gaia-central/rev/417b5a367852
Author: Reuben Morais <reuben.morais@gmail.com>
Desc: Bug 850430 - Fix 'type' properties in fakecontacts.json

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https://hg.mozilla.org/integration/gaia-central/rev/17590312e340
Author: Reuben Morais <reuben.morais@gmail.com>
Desc: Bug 850430 - Switch uses of mozContact to the new constructor. r=gwagner