For D7
 - Add RDF Mappings for new fields
 - Generate RDF from calais data/taxonomy terms/mappings 
   - Removes need for local storage or RDF
 - Config docRDFaccessible in Calais call for link to full doc if desired.
   + http://www.opencalais.com/documentation/calais-web-service-api/forming-api-calls/input-parameters
 - Convert calais_tags to d7