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

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https://hg.mozilla.org/integration/gaia-2_0/rev/5c90d040c995
Author: Ghislain 'Aus' Lacroix <aus@noiseport.org>
Desc: Merge pull request #26310 from nullaus/v2.0

Merge pull request #26125 from nullaus/bug1077595

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https://hg.mozilla.org/integration/gaia-2_0/rev/b3841a7b7549
Author: Ghislain 'Aus' Lacroix <aus@noiseport.org>
Desc: Merge pull request #26125 from nullaus/bug1077595

Bug1077595
(cherry picked from commit 906123b6d71bcd9d8db77227ffba7269e6cbaeb9)

Conflicts:
	apps/system/js/statusbar.js
Bumping manifests a=b2g-bump