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

========

https://hg.mozilla.org/integration/gaia-central/rev/02e1830c641f
Author: David Flanagan <dflanagan@mozilla.com>
Desc: Merge pull request #20041 from davidflanagan/bug1020273

Bug 1020273: make the Gallery crop handles more sensitive r=pdahiya

========

https://hg.mozilla.org/integration/gaia-central/rev/07ff3b9fe5ef
Author: David Flanagan <dflanagan@mozilla.com>
Desc: Bug 1020273: make the Gallery crop handles more sensitive
Bumping manifests a=b2g-bump