OpenAtlas

With the new form functions some validations that were done in views were moved to form validation.
Beside better structured code now instead of losing form data and having a error message displayed on top, form data now persists and the error is shown at the specific field.

Following validations were moved:

• Type validations
• Hierarchy validations

Other improvements:

• Event: added validation to check if selected super event isn't already a sub event
• Forms now aren't re-populated if there were form errors so that changes made are persistent when validation fails