Bumping gaia.json for 2 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/50e76fb04c3a
Author: Miller Medeiros <miller@millermedeiros.com>
Desc: Merge pull request #17610 from millermedeiros/987353-day-view-test

Bug 987353 - Migrate day_view_test.js to use new "view" code r=gaye

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https://hg.mozilla.org/integration/gaia-central/rev/fabaa74137ab
Author: Miller Medeiros <miller@millermedeiros.com>
Desc: Bug 987353 - Migrate day_view_test.js to use new "view" code
Bumping manifests a=b2g-bump