[Tracking Issue] ESLint, JSCS Deprecation, and Tests

[nhubbard]

If any of you follow the JSCS project that we use for coding style, they have deprecated the project in favor of merging with ESLint. I have been reading up on ESLint, and found that I have been doing it wrong all along! 😨

So, this is a tracking issue. We make a checkmark list to show what progress is happening here.

• Remove JSCS and replace it with ESLint.
• Add Travis tests to enforce ESLint, StyleLint, and HTML Validator rules.

I expect this entire system to be done by the end of the beta.

[MichMich]

Add travis test on ESLint would make any contribution much more difficult. Maybe we should force this?

[MichMich]

Scratch that. I ran into some issues cased by a PR that wasn't JS linted. FORCE IT! 😈