EDIT

ref #7106 refactoring CdmStore in turn of changed CdmRepository.getSession()

• CdmStore as Spring bean
• CdmStore managed transactions and sessions properly

ref #7106 using new CdmRepository.clearSession() method

Merge branch 'hotfix/5.5.2' into develop

ref #8162 adapt vaadin to new term package

ref #8160 CdmBeanItemContainerFactory as service bean to load entities only in readyOnly transactions to avoid unintendet flushing

fixing probelm with unchecked optional

ref #8072 better null value handling in BadgeButton and cleaning up debug code

fix #8072 introducing component BadgeButton and harmonizing the blocking registration and validation problem buttons

fix #8069 removing all message hub related code from the Registration UI:

• Buttons
• Views & Components
• Spring configuration

ref #8039 preserving un-persisted registrations only when not persisted meanwhile