Bumping gaia.json for 1 gaia-1_2 revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-1_2/rev/f49f0a96bf3b
Author: Sebastiaan de Haan <me@sebastiaandehaan.nl>
Desc: Bug 937103 - Removed the condition placed by bug 818287. r=dhunt
Bumping gaia.json for 1 gaia-1_2 revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-1_2/rev/b946d5776d33
Author: Ben Kelly <bkelly@mozilla.com>
Desc: Merge pull request #13593 from wanderview/contacts-group-overflow

Bug 937291:  Limit overflow of each group list.  r=jmcf
Bug 936711 - Fix crash which happened at disabling Bluetooth during reconnection. r=gyeh, a=koi+