Bumping gaia.json for 5 gaia-central revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/73ad695024d1
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Merge pull request #13104 from KevinGrandon/bug_922658_settings_subpanel_hotspot

Bug 930404 - [Settings] Split up hotspot panel

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https://hg.mozilla.org/integration/gaia-central/rev/7adb2edab543
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Bug 930404 - [Settings] Split up hotspot.js

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https://hg.mozilla.org/integration/gaia-central/rev/96876a22fe73
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Merge pull request #13524 from KevinGrandon/revert_pr_13368

Bug 920839 - Travis is red  - Try reverting pull request 13368 r=kgrandon

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https://hg.mozilla.org/integration/gaia-central/rev/8c900b57bdd2
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Revert "Bug 920839 - ARIA fixes to value selector."

This reverts commit 2c585692098082a9bb38558c8739a8e91cda5591.

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https://hg.mozilla.org/integration/gaia-central/rev/b27f450c1e17
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Revert "Bug 920839 - Added spinbutton ARIA markup to value picker."

This reverts commit 0d5fd65dc4f43102c38fafb756f0b9c1968d74c3.