CRUD for OwaspRef,  implementation of OwaspReference in Vulnerability Type with full functionality and included Repository file for OwaspItem. Implemented Loggable behavior for Vulnerability Entity, updated Entity file accordingly and included a DoctrineExtensionListener. Started with a solution for the history page, included Actions in Vulnerability Controller. Created EntityVersion, HistoryContextProvider and Modification services and a history_entity_mapping configuration file. Minor alterations in translation file.