Bumping gaia.json for 4 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/9a10804ae484
Author: Greg Weng <snowmantw@gmail.com>
Desc: Merge pull request #24766 from snowmantw/issue1072819

Bug 1072819 - Lock screen fade out animation "stutters"

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https://hg.mozilla.org/integration/gaia-central/rev/5b522c4c3a87
Author: Greg Weng <snowmantw@gmail.com>
Desc: Bug 1072819 - Lock screen fade out animation "stutters"

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https://hg.mozilla.org/integration/gaia-central/rev/bc59261b3bb1
Author: James Lal <james@lightsofapollo.com>
Desc: Merge pull request #24796 from lightsofapollo/bug-1077649-revert-revert

Bug 1077649

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https://hg.mozilla.org/integration/gaia-central/rev/da91417e32b3
Author: James Lal <james@lightsofapollo.com>
Desc: Bug 1077649 - -e on gaia-marionette + fixes to which command so its safe to fail
Bumping manifests a=b2g-bump