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

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https://hg.mozilla.org/integration/gaia-central/rev/949e3ca4671a
Author: autolander <kgrandon@mozilla.com>
Desc: Bug 1095805 - merge pull request #25994 from KevinGrandon:bug_1095805_shb_crash_dialog to mozilla-b2g:master

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https://hg.mozilla.org/integration/gaia-central/rev/060dee78c9ab
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Bug 1095805 - [System][SHB] Enable software home styles for crash dialog r=mhenretty
Bumping manifests a=b2g-bump