* Implemented review suggestions of WTI-Review-194: ** Improved Xml docs. ** TreeNodeExpandCollapseState now used special IComparer when hashing, doing this on reference. This is more reliable when a Equals override is implemented. ** Fixed bugs in tests related to not calling MockRepository.VerifyAll or mockRepository.ReplayAll. ** Renamed PipingCalculationGroup.NameIsEditable to PipingCalculationGroup.IsNameEditable. ** Improved resources messages. ** Refactored Drag & Drop handling code of PipingCalculationGroupContextNodePresenter to strategies. ** Added unit tests to improved (functional) coverage. Related to Issue [WTI-174] git-svn-id: https://repos.deltares.nl/repos/WettelijkToetsInstrumentarium/trunk@1296 5a3db67b-de53-47b5-99c8-a1c30a6650e2