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

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https://hg.mozilla.org/integration/gaia-central/rev/d1a39fd1aa2a
Author: Cristian Rodriguez <crdlc@tid.es>
Desc: Merge pull request #20246 from KevinGrandon/bug_1022423_vertical_component_workaround

Bug 1022423 - App names disappear after switching locale

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https://hg.mozilla.org/integration/gaia-central/rev/8d70e068cd12
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Bug 1022423 - App names disappear after switching locale

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https://hg.mozilla.org/integration/gaia-central/rev/8c4e346fc92f
Author: James Lal <james@lightsofapollo.com>
Desc: Merge pull request #20266 from lightsofapollo/1023088

Bug 1023088 - Hide toggle_calendar_test

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https://hg.mozilla.org/integration/gaia-central/rev/570a39a99c76
Author: James Lal <james@lightsofapollo.com>
Desc: Bug 1023088 - Hide toggle_calendar_test
Bumping manifests a=b2g-bump