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

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https://hg.mozilla.org/integration/gaia-central/rev/4ecf580f4638
Author: Sergi Mansilla <sergi.mansilla@gmail.com>
Desc: Merge pull request #11048 from comoyo/vcf-encoding

Bug 883278 - [contacts] importing from .vcf file (sd card) puts providedfirstname and lastname in firstname field if both contain only ascii characters, causes sort by lastname to fail [r=arcturus]

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https://hg.mozilla.org/integration/gaia-central/rev/e36c8dcb59a3
Author: Sergi Mansilla <sergi.mansilla@gmail.com>
Desc: Bug 883278 - [contacts] importing from .vcf file (sd card) puts provided firstname and lastname in firstname field if both contain only ascii characters, causes sort by lastname to fail [r=arcturus]
Bug 895578 - Make SnowWhiteKiller to use fallible TArray, r=mccr8
Merge m-c to birch.
Bug 884239 - Remove the wrapper function of timer_create if ANDROID_VERSION is greater than JB MR1. r=mwu
Bug 886765 - Make sure that no other application will send traffic when we send/receive a MMS and data traffic is off. r=vicamo
Bug 889696 - Catch exception occuring while updating 3rd party apps on booting. r=fabrice
Bug 895735 - Follow-up fix for bug 863241. r=gene
Bug 895489 - Fix webapprt-test-chrome warnings. r=fabrice