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]
Merge pull request #12854 from EverythingMe/910339-jslint-eme

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