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

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https://hg.mozilla.org/integration/gaia-central/rev/5b11ae798175
Author: John Hu <johu@mozilla.com>
Desc: Merge pull request #25919 from huchengtw-moz/bug-1093529-invoke-settings-at-home

Bug 1093529 - [Stingray] link home app to settings app, r=dwi2

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https://hg.mozilla.org/integration/gaia-central/rev/25892e76a410
Author: John Hu <johu@mozilla.com>
Desc: Bug 1093529 - [Stingray] link home app to settings app

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https://hg.mozilla.org/integration/gaia-central/rev/d80e27509554
Author: Timothy Guan-tin Chien <timdream@gmail.com>
Desc: Merge pull request #25930 from RudyLu/keyboard/Bug1095355-KeyView

Bug 1095355 - Create KeyView component, r=rudyl

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https://hg.mozilla.org/integration/gaia-central/rev/28a76b455c80
Author: Rudy Lu <me@rudy.lu>
Desc: Bug 1095355 - Create KeyView component.
 - Add registerView method for Views.
 - Remove target -> DOM element mapping
 - Clean up the code for set target <-> view mapping
Bumping manifests a=b2g-bump