Bumping gaia.json for 1 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-2_0/rev/e85285c6ba66
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Bug 1037720 - Intermittent failing test | TEST-UNEXPECTED-FAIL | /builds/slave/test/gaia/apps/verticalhome/test/marionette/app_pending_update_test.js | Vertical Home - Packaged App Update update an installed app 14:42:39 INFO - TEST-END | Vertical Home - Packaged r=me
Bumping manifests a=b2g-bump