added more bad tests to ignore list.  added hook for negative tests
added more bad tests to ignore list.  added hook for negative tests

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