ref #7035 unbinding ConversationHolder on access denied situations
fix #6687 per view implementation of the 'session-per-conversation' pattern
ref #6169 RelatedEntityListSelect (ToOneRelatedEntityField) edit and select working, add blocked by #6673
pulling up injectPresenter() in View class hierarchy
seperating out content initialization from View constructors
better popup views and editors fully compliant to MVP
ref #6169 using RegistrationItem in the ListView
logging with log4j
ref #6169 initial list view on registrations
ref #6169 using mvp for the RegistrationWorkflowView
adding spring-mvp framework