Move RDFDataRepository to the new package cz.cuni.xrg.intlib.commons.data.rdf .
Move enum RDFFormatType to the package cz.cuni.xrg.intlib.commons.data.rdf
Move class CannotOverwriteFileException to the package
cz.cuni.xrg.intlib.commons.data.rdf
Change LocalRDFRepo class to RDFDataRepository interface in all DPUs.
Move repository package from intlib-commons to backend
Move test classes and files from intlib-commons to backend.