#44: Deferred experimental
#44: Fix isValid() method
#53: Fix notEmpty validator for radio and checkbox
#62: The callback validator passes wrong parameter
Update different and identical validators due to validator.getFieldElements() modification
#71: Show all errors
Live validating option
Fix submitHandler example due to validator.getFieldElements() changes
#44: Implement custom submitHandler
Submit form when all validators are completed and the form is valid
#73: Describe which version should be included in the Usage section
#64: Support Danish zip code
#65: Support Sweden zip code
Update README: Add contributors
Format the README
#26, #27, #67: Add choice validator
#70: Support custom grid columns
#50: Don't validate disabled element
Update the default demo
#36, #58: Add method to validate form manually