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

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https://hg.mozilla.org/integration/gaia-central/rev/b488585bca04
Author: Jonathan Griffin <jgriffin@mozilla.com>
Desc: Merge pull request #10586 from jonallengriffin/disablegesture

Bug 868647 - Disable gesture detector tests on TBPL for perma orange, r=...

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https://hg.mozilla.org/integration/gaia-central/rev/490fe03403fa
Author: Jonathan Griffin <jgriffin@mozilla.com>
Desc: Bug 868647 - Disable gesture detector tests on TBPL for perma orange, r=mdas, a=test-only