EDIT

ref #6925 Set conversation and cdmEntitySession to null for dispose

ref #6925 Dispose conversation and entity session when closing editors

• use session from editor input if provided

avoid widgetIsDisposed exceptions by check of control is disposed

ref #6971 Dispose input session when disposing editor

ref #6971 Fix creation of two sessions for each name editor

• session is now passed from editor input to editor

remove SelectionViewMenu because it is not used anymore

e4 migration of selection dialogs

avoid widget is disposed exception in details view

add menu to namedAreaSelection dialog (need to be migrated)

code cleaning