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

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https://hg.mozilla.org/integration/gaia-central/rev/744f062af344
Author: Zac <zcampbell@mozilla.com>
Desc: Merge pull request #13067 from AndreiH/bug930042

Bug 930042 - Minor enhancement to test_sms_add_contact

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https://hg.mozilla.org/integration/gaia-central/rev/ccbd86c0af0f
Author: Andrei Hutusoru <andreihutusoru@P5069.(none)>
Desc: Bug 930042 - Minor enhancement to test_sms_add_contact