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

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https://hg.mozilla.org/integration/gaia-central/rev/aed25a1b6915
Author: Fernando Campo <fernando.campo@o2.com>
Desc: Merge pull request #14419 from fcampo/jshint-errors

[Bug 946773] JShint errors (r=arcturus)

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https://hg.mozilla.org/integration/gaia-central/rev/7042c6be0826
Author: Fernando Campo <fernando.campo@o2.com>
Desc: Fix some JShint errors