Merge branch 'master' of git@github.com:mff-uk/intlib.git
Change type of  Exception in BaseRDFRepo - method getEndpointStreamReader.
Remove methods loadToSPARQLEndpoint from RDFDataUnit interface. Issue #542
Remove method loadToSPARQLEndpoint from RDFDataUnitHelper interface. Issue #542
Remove methods loadToSPARQLEndpoint and next needed method from BaseRDFRepo. Issue #542
Remove method interruptExecution - from DataUnit interface
- use context.canceled in implementation
- issue #542
SPARQL loader
- add methods loadToSPARQLEndpoint
- implement CANCEL DPU using context.canceled
- issue #542
Move TestContext to commons module - need for stay testing in module-test and testing loadToSPARQLEndpoint method in RDF module.
Move SPARQL loader to RDF module impl package
-need for stay test for loading.
Update RDF tests using loadToSPARQLEndpoint.
Merge branch 'master' of git@github.com:mff-uk/intlib.git