Bumping gaia.json for 1 gaia-1_3 revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-1_3/rev/22f21c535c78
Author: Mason Chang <mason@masonchang.com>
Desc: Merge pull request #16126 from changm/bug968311

bug 968311 - Put Gallery App in scrollable background color. r=:21
Bumping gaia.json for 1 gaia-1_3 revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-1_3/rev/e4032cce0721
Author: Mason Chang <mason@masonchang.com>
Desc: Merge pull request #16127 from changm/bug968478

Bug 968478. Put scrollable opaque layer in calendar app. r=21