added RDF responses to fcr:describe endpoint and ITs for rdf+json and rdf+xml
changed method to use a simple redirection to the describeRdf() method
added check for mode:root primary type to JcrRdTools
removed /fcr:describe endpoint and Tests. Added NodeType mock for Unit tests
added fixity metrics to describe response
added objectssize to rdf response
added cluster configuration information to RDF response
getClusterConfiguration should not throw exception if the binary store is not an ISPN cache
include repository descriptor information in the rdf output
just dump the whole cluster configuration, if available.
Add a simple IT test for repository information