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

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https://hg.mozilla.org/integration/gaia-central/rev/c65391ad99e6
Author: George <georgeiscoming@gmail.com>
Desc: Merge pull request #24111 from cctuan/1060191

Bug 1060191 - Web compat issues with window.open

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https://hg.mozilla.org/integration/gaia-central/rev/a5124dae0dd9
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Bug 1060191 - Web compat issues with window.open, add opener test case
Bumping manifests a=b2g-bump