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

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https://hg.mozilla.org/integration/gaia-central/rev/f2e74574c895
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Merge pull request #25225 from staktrace/vhome

Bug 1083818 - Don't reimplement click handling in gaia when gecko can do it just fine. r=kgrandon

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https://hg.mozilla.org/integration/gaia-central/rev/bbcdd8b7a3c7
Author: Kartikaya Gupta <kgupta@mozilla.com>
Desc: Bug 1083818 - Don't reimplement click handling in gaia when gecko can do it just fine. r=kgrandon
Bumping manifests a=b2g-bump