add RDF generator stub, that pulls data from the jcr properties
rename dublin core stuff for consistency with the rdf generator
update the webapp with the new names for some of the classes
Rename fcrepo-dc module to fcrepo-generator-dc
wire in rdf generator to the webapp by default.
wire in rdf generator
explicit dependency on xerces in generator-rdf
Merge branch 'rdf-generator'

* rdf-generator:
  explicit dependency on xerces in generator-rdf
  wire in rdf generator
  wire in rdf generator to the webapp by default.
  Rename fcrepo-dc module to fcrepo-generator-dc
  update the webapp with the new names for some of the classes
  rename dublin core stuff for consistency with the rdf generator
  add RDF generator stub, that pulls data from the jcr properties