Validate on [data-validate] attribute rather than class hook.
Automatically validate filled fields on load.
Fix issue loading modal from hash.
"Default" validation messages if not specified.
Relative paths for requires.
Preliminary work to allow fieldset validation.
Re-adds "match" validation function.
Only validate required fields on submit (for now).
Merge pull request #269 from DoSomething/validation-improvements

Validation improvements