Update metod clearEndpointGraph
- try retry if operation clear graph fail
- issue #1055
- issue #1056
Update metod getSPARQLEnpointGraphSize in SPARQL loader
- try retry if operation find size for endpoint graph fail
- issue #1055
- issue #1056
Update metod moveDataToTarget in SPARQL loader
- try retry if operation find size for endpoint graph fail
- issue #1055
- issue #1056
Merge branch 'master' of git@github.com:mff-uk/intlib.git