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

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https://hg.mozilla.org/integration/gaia-central/rev/4b22cf21e5ff
Author: Amir Nissim <amirnissim@gmail.com>
Desc: Merge pull request #12854 from EverythingMe/910339-jslint-eme

Bug 910339 - Linting E.me code [r=crdlc,ranbena,evyatar]

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https://hg.mozilla.org/integration/gaia-central/rev/a4d97d5da14d
Author: Amir Nissim <amirn@everything.me>
Desc: Bug 910339 - Linting E.me code [r=crdlc,ranbena,evyatar]

* replaced all double quotes with single quotes
* added EOF new lines
* added curly braces around blocks in loops and conditionals
* fixed line breaks at 80
* fixed indentation issues
* fixed missing/unnecessary semicolons
* removed Shortcuts.js [not used]