ref #7674 Fix saving of aggregated description
ref #7674 Fix class cas exceptions
ref #4611 i18n character matrix
Fix saving routine for descriptions
Fix possible multi rep exception by not saving description separately
Fix frozen layer when toggling tree/list view
Add loading label to character matrix
Fix potential NPE when saving
ref #7509 Fix potential NPE
ref #7509 Add "Aggregate" button to character matrix
replace all occurrences of workingSet by descriptiveDataSet and fix some other compile errors after model change