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

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https://hg.mozilla.org/integration/gaia-central/rev/fca93ff8ee10
Author: Miller Medeiros <miller@millermedeiros.com>
Desc: Merge pull request #17831 from millermedeiros/989785-backout-duplicated-dom

Bug 989785 - apps/calendar/test/marionette/week_view_test.js failing because of week view regression r=gaye

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https://hg.mozilla.org/integration/gaia-central/rev/1d65adac71b0
Author: Miller Medeiros <miller@millermedeiros.com>
Desc: Bug 989785 - apps/calendar/test/marionette/week_view_test.js failing because of week view regression

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https://hg.mozilla.org/integration/gaia-central/rev/369a20a696bf
Author: Miller Medeiros <miller@millermedeiros.com>
Desc: Revert "Bug 988079 - [Calendar] day view sometimes adds duplicated days to the DOM"

This reverts commit 277ef605c8f8305fe91a65559bfe35ca3458852b.

Conflicts:
	apps/calendar/test/marionette/day_view_test.js
	apps/calendar/test/unit/views/day_test.js
Bumping manifests a=b2g-bump