Bumping gaia.json for 3 gaia-central revision(s)

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https://hg.mozilla.org/integration/gaia-central/rev/3f46a8ef8ce5
Author: Rick Waldron <waldron.rick@gmail.com>
Desc: Restores 880628 test

Signed-off-by: Rick Waldron <waldron.rick@gmail.com>

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https://hg.mozilla.org/integration/gaia-central/rev/79cb4ffcbf1e
Author: Rick Waldron <waldron.rick@gmail.com>
Desc: Bug 881248 - [MMS] Multirecipient. A contact with >1 number must only render the relevant number (vs. rendering all) r=julienw

Signed-off-by: Rick Waldron <waldron.rick@gmail.com>

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https://hg.mozilla.org/integration/gaia-central/rev/61155597842f
Author: Julien Wajsberg <felash@gmail.com>
Desc: Bug 883732 - Fix SMS tests r=gnarf

* Wrap the code inside the `done` callback
* use an height of 100px instead of 50px to trigger multiline mode
* use this.sinon instead of sinon to ensure correct restore