- optionally produce in-memory RDF graph
- upgraded jena, junit, java versions (jena 4.1, java JDK11)
- improved unit tests by comparing isomorphism of output graphs with test graphs (@fkleedorfer)
- bugfix for IFC4_ADD2_TC1
- added baseURI option at start up
- moved functions to separate IfcParser Class for better reusability
- added conversion and files for IFC4x3_RC1
- included integration with Zenodo for the generation of DOIs per release
- added support for IFC4x1 - conversion of instance data
- mvn unit testing with sample files covering most of IFC's peculiarities
- changed namespace and output to http://standards.buildingsmart.org/IFC/DEV/
- added conversion and files for IFC4_ADD2 and IFC4_ADD2_TC1
- resolved bug in loading imported ontologies, inherent to the later version of Jena
- LOG to file
- added conversion and files for IFC4_1 (IfcAlignment)
- added test files and expected output
- alternative EXPRESStoOWL library
- change to buildingsmart-tech namespace
- Use maven-java-formatter-plugin to format all code
- Mavenize codebase