D-Net

#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

#913 introducing DocumentContentUrl#contentSize field, handling it properly in all PIG transformers

#840 moving IdentifierMapping from importer to common package

#840 renaming DeduplicationMapping to more generic IdentifierMapping

#757 introducing doitooaid transformer processing DocumentMetadata datastore holding metadata imported from InformationSpace and creating datastore holding <doi,oaid> pairs which will be used by pmc ingestor for matching references identified by doi

null reference ids removed

updating default job.properties

removing memory related properties, fixing #757 should solve all memory related problems

#568 introducing citations grouping by sourceDocumentId, still to be adjusted for ingested pmc citations outcome which currently seems to hang up