title: Dynamically get a list of Laravel Validation Rules?
body: <p>Is there any way to dynamically retrieve a list of "legal" validation rules?  I'm trying to have my models self-validate their own validation rule string, to make sure it is accurate.  i.e. to make sure someone didn't type "requierd".</p>
  
  <p>I see getRules() at <a href="http://laravel.com/api/class-Illuminate.Validation.Validator.html" rel="nofollow">http://laravel.com/api/class-Illuminate.Validation.Validator.html</a>, but that only returns ruled used within the validation, not a list of all known rules.</p>