Fix to Hidden Input Validation

Fixed an issue with error help blocks not being removed on valid forms.

Don't validate hidden fields

Skips validation on hidden fields.

2nd Beta Release

Been using on several sites for months now. No known issues.

This release fixes a potential issue where the validator tried to validate checkboxes and radio buttons that weren't inside the jQuery object.

Also - fixed a couple things with the package.json to make installing grunt work correctly after cloning the repo.

Beta Release

The validator works pretty well know. Hasn't had serious testing with anything except:

1. Latest versions of Firefox / Chrome.
2. jQuery 1.11+ and 2.0+

Alpha Release

Alpha Version. Works with Bootstrap 3.3.4, jQuery 1.11.1 and Chrome.

Needs additional testing in different platforms and versions.

Has minor issue with Select2.