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

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https://hg.mozilla.org/integration/gaia-central/rev/edd094867cb8
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Merge pull request #23430 from KevinGrandon/bug_1054215_window_open_launching_alternate

Bug 1054215 - Alternate approach, window.open through activities

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https://hg.mozilla.org/integration/gaia-central/rev/5a18c4ba15d2
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Bug 1054215 - Alternate approach, window.open and <a target="_blank" > from a browser window should open a new browser window r=alive
Bumping manifests a=b2g-bump