* The issue is sorting on pointer address for ensembles and summary cases. Instead sort by name.
* The crucial changes are in RiaSummaryCurveDefinition.cpp, RimSummaryCase and RimSummaryCaseCollection.
* The rest of the changes are just fallout from changing the pure virtual method RimSummaryCase::caseName to be const. The rest just follows.
* RimGridSummaryCase::caseName does alter something, but this variable was already declared mutable.
