Fetch the userdata for existing user when editing, or fetch empty object when adding
Added userlevel to the user editor
Added save function to the user form
Show the fullname in the user overview instead of just the firstname
Change the value of form controls with set_value instead of using the associative array,
this keeps the posted data in the fields even when the validator fails to run
Minor dutch language file update
Display the user his name in the navbar
Added a method to fetch postdata into an array