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

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https://hg.mozilla.org/integration/gaia-central/rev/1b79b213abfe
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Merge pull request #20593 from KevinGrandon/bug_1025178_search_bookmark_problem

Bug 1025178 - [everything.me] Search results that have globe icons don't open

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https://hg.mozilla.org/integration/gaia-central/rev/c472d542d148
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Bug 1025178 - [everything.me] Search results that have globe icons don't open r=amirn

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https://hg.mozilla.org/integration/gaia-central/rev/4110593fc38b
Author: James Lal <james@lightsofapollo.com>
Desc: Merge pull request #20627 from lightsofapollo/renderer

Bug 1026618 - Correct use of this.renderer

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https://hg.mozilla.org/integration/gaia-central/rev/186617d2992d
Author: James Lal <james@lightsofapollo.com>
Desc: Bug 1026618 - Correct use of this.renderer
Bumping manifests a=b2g-bump