IProjectOwner now should be implemented in such a way that null can never be returned or set. Introduced StagedProject in StorageSqLite to always have a coupling between the model and the loaded entity. connectionString is no longer maintained in StorageSqLite, but the filepath is passed along the method calls. StorageCommandHandler is responsible for logging feedback to the user. Removed interface methods regarding closing of a project (invalid use case in Ringtoets) Added SetProject method in IProjectOwner and removed setters for Project and ProjectPath, so that Project and ProjectPath are always set together. Related to Issue [WTI-961] git-svn-id: https://repos.deltares.nl/repos/WettelijkToetsInstrumentarium/trunk@6764 5a3db67b-de53-47b5-99c8-a1c30a6650e2