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

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https://hg.mozilla.org/integration/gaia-central/rev/c5e6e65b5953
Author: b2gautomation <jonallengriffin@gmail.com>
Desc: Update gaia-ui-tests.json; Merge pull request #1339 from davehunt/bug886994

Bug 886994 - Re-enable settings panel tests

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https://hg.mozilla.org/integration/gaia-central/rev/636b5c40a728
Author: James Lal <james@lightsofapollo.com>
Desc: Merge pull request #12071 from KevinGrandon/bug_914580_rename_web_comps

Bug 914580 - Rename web components -> html imports

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https://hg.mozilla.org/integration/gaia-central/rev/20fb4f05a6bb
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Bug 914580 - Rename web components -> html imports