D-Net

Removing usage of working_dir from Java workflow node.

imports cleanup

#118 fixing web usage similarity exporter module

#118 bugfix: shortening node name exceeding 50 chars

#118 enabling document-websiteusage-similiarity exporter module in exporter workflow definition

#118 updating similarities exporter module: assuming relations provided as input are bidirectional so we do not create backward relations

#919 renaming DocumentToResearchInitiative to DocumentToConceptId and DocumentToResearchInitiatives to DocumentToConceptIds

#919 introducing support for exporting document project concepts, minor research-initatives exporter refactoring

• writing skipped document identifiers to DocumentId datastore
• filtering out relations by skipped identifiers from DocumentId datasetore

#963 propagating dataset -> mdstore from import to exporting phase: importer produces DocumentToMDStore datasetore utilized by exporter module. Updating transformer definition to handle DocumentToMDStore instead of Identifier schema