Fallback for preview versions(workflow)

Provides fallback to preview versions (usefull for those that are in production with the preview version and don't want to modify their code).
In the preview version the validation was made like $(form).validate({options_here}) or $("#idForm").validate({options_here}). The validate function also returns boolean value useful for custom actions (also fallback) ie: var isValid = $("#idForm").validate({errorMessagePosition : 'element'}); if(isValid){$("#idForm").submit();}else{ //do something else here}