D-Net

#1147 introducing union4 pig script

#1133 dropping useless workfing_dir creation for pig nodes

#118 introducing website usage community filter filtering out publication identifiers based on ids set retrieved from InformationSpace. This is required to exclude removed publications which were still present in logs.

#118 removing obsolete and duplicate transformer

updating job.properties

#919 renaming DocumentToResearchInitiative to DocumentToConceptId and DocumentToResearchInitiatives to DocumentToConceptIds

#919 introducing project to concept transformer module

#1019 introducing PIG module transforming pmc ingested metadata into common extracted document metadata

#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

#913 renaming DocumentContentUrl#contentSize to DocumentContentUrl#contentSizeKB changing field type from int to long, importing content size from ObjectStoreFile#fileSizeKB, updating dnet-objectstore-rmi dependency from 1.0.0 to 2.0.1-SNAPSHOT