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

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https://hg.mozilla.org/integration/gaia-central/rev/d00b79cf520c
Author: Jan Jongboom <janjongboom@gmail.com>
Desc: Merge pull request #20141 from r-gaia-cs/bug-1021500

Bug 1021500 - Keep layouts consistent. r=janjongboom

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https://hg.mozilla.org/integration/gaia-central/rev/832f24f11c4b
Author: Raniere Silva <raniere@ime.unicamp.br>
Desc: Bug 1021500 - Keep layouts consistent

- Remove '_' from the second row for input "email"
- Remove ':' from the second row for input "url"
Bumping manifests a=b2g-bump