Bumping gaia.json for 3 gaia revision(s) a=gaia-bump

========

https://hg.mozilla.org/integration/gaia-2_0/rev/c9e133b77258
Author: Ghislain 'Aus' Lacroix <aus@noiseport.org>
Desc: Merge pull request #21117 from nullaus/v2.0

Merge pull request #21069 from nullaus/bug1022804

========

https://hg.mozilla.org/integration/gaia-2_0/rev/f0c6a13c08e7
Author: Ghislain 'Aus' Lacroix <aus@noiseport.org>
Desc: Merge pull request #21069 from nullaus/bug1022804

bug 1022804 - Clear all references of a successful download from the Dow...
(cherry picked from commit ddfea87310513b5499200175c752ad14cf044bf7)

========

https://hg.mozilla.org/integration/gaia-2_0/rev/c8d1c7514723
Author: jrburke <jrburke@gmail.com>
Desc: Revert "Merge pull request #20828 from jrburke/bug1025727-email-cronsync-failsafe"

This reverts commit c80c6ae1b3214a60e8ac5b19e8206334737e3af3.
Bumping manifests a=b2g-bump