Only display "Field is required" when there are no errors - to prevent duplicate NonBlank constraint warnings
Merge branch 'master' into fix/required-message

* master:
  Add a screenshot, refer to the getting started guide and remove outdated or incomplete information.
  Update .travis.yml
  datepicker format dd/mm/yyyy
  update styles and script
  fix selectlink box
  update styles
  Optimize images and update some scripts
  css fix for nested_input_prop_container label
Merge pull request #170 from Kunstmaan/fix/required-message

Only display "Field is required" when there are no errors - to prevent d...