User Edit Function

• Edit and delete functions for the user.
  If a user is logged in, he can edit and delete his own entries Also he is able to switch his entry to another category. This functionality ca be switched off within the backend.
• The user is able to add his entry afterwards to additional categories.
• If the user selects additional options which requires fees while editing his entry, these fees will be charged again.
• It is adjustable within the backend, if the delete function really deletes an entry or sets it only to unpublish.