Bumping gaia.json for 3 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/93c983f28290
Author: KWierso <kwierso@gmail.com>
Desc: Revert "Merge pull request #17161 from pivanov/bug-968483" for regressions

This reverts commit a71c4bf0a0e8ef949b6c03cac1e3be1d957f126e, reversing
changes made to ea9e23abea5933656555d849b922c8da7530c90b.

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https://hg.mozilla.org/integration/gaia-central/rev/7ae17f20739f
Author: Gareth Aye <gaye@mozilla.com>
Desc: Merge pull request #17211 from millermedeiros/962445-week-15-min

Bug 962445 - Calendar events, that span 15 minutes (or less) are not displayed correctly in Week view. r=gaye

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https://hg.mozilla.org/integration/gaia-central/rev/da18653f0805
Author: Miller Medeiros <miller@millermedeiros.com>
Desc: Bug 962445 - Calendar events, that span 15 minutes (or less) are not displayed correctly in Week view.
Bumping manifests a=b2g-bump