EDIT

ref #6169 UserHelper checking permissions:

• UserHelper as SpringComponent which selfregisters in the VaadinSession
• disabling fields in PersonField of User has not sufficient permissions

ref #6169 initial Popup editor for Registrations

ref #6612 Team and Person editor widgets implemented and integrated in reference editor

ref #6612 Custom Textfield with switch for all protectable cache fields

ref #6169 filtering registration list by role, user and status in the 2 ListView modes

View based authentication with login dialog

ref #6169 impoved TimePeriod custom field

ref #6169 removing usued bean reference

removing obsoltete UI class

better popup views and editors fully compliant to MVP