Bumping gaia.json for 2 gaia-central revision(s)

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https://hg.mozilla.org/integration/gaia-central/rev/82cba799ba6a
Author: Michal Budzynski <michal@virtualdesign.pl>
Desc: Merge pull request #10725 from siemiatj/bug_888181

Bug 888181 - Remove all prefixed usages of mozvisibilitychange and mozHi...

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https://hg.mozilla.org/integration/gaia-central/rev/355fda17355e
Author: jakub <jakub@bryntum.com>
Desc: Bug 888181 - Remove all prefixed usages of mozvisibilitychange and mozHidden