EDIT

update Datasource script

ref #7980, ref #8871 improve error handling and verification in aggregations

cleanup, javadoc and minor

ref #7980 fix aggregation for titleCache of reused descriptions

ref #7980 fix aggregation for measurement units (still open are not equal units)

adapt dummy measurement unit to meter in test dataset

ref #7980 fix tests for aggregation source mode

ref #7981, ref #7980, ref #8871 explicitly defined source modes for aggregation configurators

some renaming

ref #8871, ref #7980 handle aggregation source mode TAXON for toParent