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

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https://hg.mozilla.org/integration/gaia-central/rev/70e61e42ab0b
Author: James Burke <jrburke@gmail.com>
Desc: Merge pull request #25474 from asutherland/email-mixedcase-doctypes

Bug 1085121 - Support mixed-cased (non-uppercase) doctypes. r=jrburke

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https://hg.mozilla.org/integration/gaia-central/rev/3127c9315348
Author: Andrew Sutherland <asutherland@asutherland.org>
Desc: Bug 1085121 - Support mixed-cased (non-uppercase) doctypes. r=jrburke

propagate
https://github.com/mozilla-b2g/gaia-email-libs-and-more/pull/344
which is just propagating
https://github.com/mozilla-b2g/bleach.js/pull/9
Bumping manifests a=b2g-bump