fix #7425 VerbatimTimePeriodField implemented
fixing TimePeriodField being not committed
fixing ugly 'null' representation in vaadin TextField
ref #6169 RelatedEntityListSelect (ToOneRelatedEntityField) edit and select working, add blocked by #6673
ref #6612 Team and Person editor widgets implemented and integrated in reference editor
ref #6612 Custom Textfield with switch for all protectable cache fields