Build: JSCS

Includes:
- Whitespace and some style fixings
- Max 100 characters line length partial cleanup
- Ignore test/deepEqual.js
- disable max line length
  - Ref https://github.com/jquery/contribute.jquery.org/issues/80#issuecomment-45253460
- Wrap immediately invoked function expressions in parentheses

Closes #584
Test: Remove deprecated QUnit.current_testEnvironment