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

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https://hg.mozilla.org/integration/gaia-central/rev/abc652dfd3e2
Author: Yuren Ju <yurenju@gmail.com>
Desc: Merge pull request #23485 from xfq/Bug1032023r2

Bug 1032023 - Fix jshint error for build/pre-app.js r=yurenju

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https://hg.mozilla.org/integration/gaia-central/rev/3f5e15d49f7b
Author: Xue Fuqiao <xfq.free@gmail.com>
Desc: Bug 1032023 - Fix jshint error for build/pre-app.js

Conflicts:
	.jshintignore

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https://hg.mozilla.org/integration/gaia-central/rev/c5e1274e4fe7
Author: Yuren Ju <yurenju@gmail.com>
Desc: Merge pull request #23533 from xfq/Bug1032001r2

Bug 1032001 - Fix jshint error for build/copy-build-stage-data.js r=yurenju

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https://hg.mozilla.org/integration/gaia-central/rev/dcc2a653aa7c
Author: Xue Fuqiao <xfq.free@gmail.com>
Desc: Bug 1032001 - Fix jshint error for build/copy-build-stage-data.js
Bumping manifests a=b2g-bump