allow for multiple checkboxes with the same name but different values

[levijackson]

Using checkboxes like: <input type="group[]" value="1" /> <input type="group[] value="2" /> would select the first option every time. Checking on the value as well ensures it selects the correct options.

[steve-didomenico]

This code works for multiple checkboxes with the same name. Please merge with master!