Refactor tests

# DO NOT MERGE
Opening so I don't lose track of this

- [ ] Split tests into descrete areas
  - [x] Localizations
  - [ ] Additional Methods
  - [ ] Native/Core validators
  - [ ] Event handlers
  - [ ] Accessiblity
- [ ] Replace hard coded test harnesses with setup methods
- [x] Upgrade QUnit
- [ ] Setup SauceLabs integration
- [ ] Remove non-test files in `test` directory
  - [x] Delete Firebug
  - [x] Move tabs to examples
  - [ ] Delete events.html
  - [ ] Delete large.html
- [ ] Reword jQuery loader