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

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https://hg.mozilla.org/integration/gaia-central/rev/282e1f7d8eae
Author: Rex KM Lee <rexboy@mozilla.com>
Desc: Merge pull request #26877 from rexboy7/1105979-editmode-3

Bug 1105985 - [Stingray][Home] Edit view and Arrange view. r=dwi2 f=johnhu

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https://hg.mozilla.org/integration/gaia-central/rev/b4eddff8c3c6
Author: Rex Lee <rexboy@mozilla.com>
Desc: Bug 1105985 - [Stingray][Home] Edit view and Arrange view
Bumping manifests a=b2g-bump