Added Empire dependency, Webservice config stub
Added Empire dependency
Merge branch 'kb-fileservice' into kai-rdf-api

Conflicts:
	pom.xml

New features: Object mapping for Grafeo started.
RDF Object Mapping extended:
- Object can now be created from RDF
- Objects can be linked
Todos:
- support for blank nodes
- support for collections
Blank node support added
Cleanup
Merge branch 'kai-rdf-api' of https://github.com/DM2E/dm2e-ws into kai-rdf-api

Conflicts:
	src/main/java/eu/dm2e/ws/services/data/DataService.java
Merge branch 'kb-rdf-api' into kai-rdf-api