fix #223 Preserve backward compatibility for ontology document format
Bump Sesame to 2.8.0-beta2-SNAPSHOT to get RDF-1.1
Add OWL2Datatype.RDF_LANG_STRING
Use XSD_STRING and RDF_LANG_STRING in OWLLiteralImpl
Convert OWLLiteralImplPlain in place to XSD_STRING and RDF_LANG_STRING
Fix LiteralTestCase due to change in assumptions
More work on RDF-1.1 migration
fix rdfxml and turtle renderers
Fix/workaround manchester test by using test base equals method
Fix JVM incompatible string comparisons, oraclejdk7 renders entities

Others do not seem to do it that way, including oraclejdk8