Added a Gulp build
Lint cleanup
Updated QUnit to match qqunit version
Brought implementaton up to date with Django trunk

- Added inverseMatch option for RegexValidator
  - Backwards-incompatible change: now takes a kwargs object
- Added whitelisting of schemes to URLValidator
  - Now takes a kwargs object
- Added whitelisting of domains to EmailValidator
  - Backwards-incompatible change: now takes a kwargs object
- Email parts are now validated individually
- Backwards-incompatible change: removed the pre-configured URLValidator instance, validateURL
- Some linting cleanup
- Added more tests from the Django test suite
Added a separate LICENSE file