Rename _desc to _cast and added _new
Rename _desc to _cast and added _new

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