20111208 (716 prefixes)
  added: calli,dwc,eunis,georss,pna,swpatho,voidp
  introduced blank nodes in RDF::NS::Trine
  extended command line tool to expand QNames
20111124 (709 prefixes)
  added: gnd,grs,htir,infosys,muto,omapi,prf,webbox
  changed: commerce
  removed: uri
  modified command line tool option syntax
20111102 (702 prefixes) 
  new command line tool 'rdfns'
  added: vsw
20111031 (701 prefixes)
  first release at CPAN
  added: daiaserv,vvo
20111028
  first full-featured version