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

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https://hg.mozilla.org/integration/gaia-central/rev/3759d8a4b1b5
Author: sv99 <sv99@inbox.ru>
Desc: Bug 1066988 - [clock] unittest picker_test.js using assert.include for testing object, not Array or string r=mcav

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https://hg.mozilla.org/integration/gaia-central/rev/b7b3c15c6f64
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Revert "[clock] unittest picker_test.js using assert.include for testing object, not Array or string"

This reverts commit a87b3bc0871ce34ea5305b1012d11fb5088cc6b9.

This commit was from bug 1066988. Reverting due to not having a proper bug number listed in the commit message.
Bumping manifests a=b2g-bump