fixed BisonGen instanciation of RDF collections - see checked in test cases
fixed BisonGen instanciation of RDF collections - see checked in test cases

armandobs14/rdflib,dbs/rdflib,ssssam/rdflib,yingerj/rdflib,avorio/rdflib,yingerj/rdflib,avorio/rdflib,ssssam/rdflib,avorio/rdflib,marma/rdflib,yingerj/rdflib,RDFLib/rdflib,ssssam/rdflib,RDFLib/rdflib,avorio/rdflib,armandobs14/rdflib,marma/rdflib,RDFLib/rdflib,marma/rdflib,dbs/rdflib,yingerj/rdflib,armandobs14/rdflib,RDFLib/rdflib,dbs/rdflib,dbs/rdflib,marma/rdflib,ssssam/rdflib,armandobs14/rdflib