Add method restartConnection to RDFDataUnit need for SPARQL loader.
- issue #970
Add implementation of method restartConnection to BaseRDFRepo.
- issue #970
Update SPARQL loader - fix DB failure during SPARQL construct execution
- use method restartConnection()
- change RDFFormat for inputStreamReader from N3 to RDF/XML.
- add next calling context.canceled()
- issue #970