EDIT

ref #7870 clearing the session to wipe out any left overs from previous usage of the session in handleViewEntered

fix #7036 making sure all spring beans are disposed when the vaadin session times out

• RegistrationToolbar, RegistrationUI, RegistrationWorkingsetPresenter, NavigationManagerBean as DisposableBean
• seetting the vaadin closeIdleSessions parameter to true in web.xml

ref #7785 using CdmTransientEntityAndUuidCacher to promote using the CachingCdmUserHelper

fix #7814 CdmEditor not readlony with un-persisted entities and hiding delete button in this case

ref #7648 using CdmEntityInstantiator to disentangle the handling the creation of new taxon names for registrations

ref #7648 generalizing bean instantiation in cdm presenters

fix #7742 unsubscribing from event bus when disposing presenter

fix #7742 disposing view, presenter and ehcaches when popupviews are closed

remaming CdmEntityDecoratorDTO to CdmEntityAdapterDTO

ref #7550 replacing the selfregisration of the VaadinUserHelper to the vaadin session by a UserHelperAccess bean