add 404 header on responce
fix validation
fix exists value method
refactor
change onError handler
remove unused fields
add captcha library
fix view
add captcha
add default User.role value
add captcha validation
add captcha route
check if value returned by controller is instance of view
add base ValidationException
remove unused import
add getters and setters
remove unused import
creation of captcha widget
refactor validation models
refactor