Bumping gaia.json for 3 gaia-central revision(s)

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https://hg.mozilla.org/integration/gaia-central/rev/b47ac7c2176b
Author: b2gautomation <jonallengriffin@gmail.com>
Desc: Update gaia-ui-tests.json; Merge pull request #1374 from bebef1987/master

Add move notice

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https://hg.mozilla.org/integration/gaia-central/rev/ab6cc3ef3a8f
Author: b2gautomation <jonallengriffin@gmail.com>
Desc: Merge branch 'master' of github.com:mozilla-b2g/gaia

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https://hg.mozilla.org/integration/gaia-central/rev/bcc1434d9e43
Author: b2gautomation <jonallengriffin@gmail.com>
Desc: Update gaia-ui-tests.json; wait for permission details to be visibile