v5.9.4

Bugfix release v5.9.4:

• MDSL generator fix: Datatype blob is no longer supported by MDSL. Blob's are now mapped to the new datatype raw.
  • Mapping documented here: https://contextmapper.org/docs/mdsl/#data-type-mapping
• Glossary Freemarker template fix: The glossary Freemarker template for our generic generator contained a problem with rendering operation return types which is fixed now.