v1.5.0

New Features

• Added onValidationFailed property. It accepts a callback that is executed during validation routines in case there were validation errors. It is executed after errors are set.
• Form's default validation now validates inputs within collections that have wildcard validation defined. I.e. if you have 'items.*.name': 'presence' validation defined, you no longer have to define validate method to manually
  iterate over collection items to validate them.
• If Promise is defined, Form's set method will return a promise object that will be resolved after new attributes have been set.