Bumping gaia.json for 6 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/4d5748656a9e
Author: chirarobert <robert.chira@softvision.ro>
Desc: Merge pull request #23556 from bebef1987/x

Bug 1061115 - Xfail test_toggle_bluetooth_settings

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https://hg.mozilla.org/integration/gaia-central/rev/b5ea77ea39b3
Author: Bebe <bebe@mozilla.ro>
Desc: Bug 1061115 - Xfail test_toggle_bluetooth_settings

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https://hg.mozilla.org/integration/gaia-central/rev/b483410bd547
Author: Yuren Ju <yurenju@gmail.com>
Desc: Merge pull request #23457 from xfq/Bug1032008r2

Bug 1032008 - Fix jshint error for build/jshint/xfail.js r=yurenju

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https://hg.mozilla.org/integration/gaia-central/rev/d0a9de15a155
Author: Xue Fuqiao <xfq.free@gmail.com>
Desc: Bug 1032008 - Fix jshint error for build/jshint/xfail.js

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https://hg.mozilla.org/integration/gaia-central/rev/0e89bb36bbae
Author: gasolin <gasolin@gmail.com>
Desc: Merge pull request #23451 from gasolin/issue-1060208

Bug 1060208 - [Settings] patch new panels with gaia-headers, r=eragon

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https://hg.mozilla.org/integration/gaia-central/rev/7cff51a5ac3f
Author: gasolin <gasolin@gmail.com>
Desc: Bug 1060208 - [Settings] patch new panels with gaia-headers
Bumping manifests a=b2g-bump