D-Net

#919 introducing Concept schema and importer module producing avro datastore based on XML profile

#686 introducing ExtractedDocumentMetadataEnvelope schema definition

#577 introducing citation envelope

#1017 introducing PMC extracted metadata schema

introducing detailed confidenceLevel field description placed in external eu/dnetlib/iis/README.markdown file

#963 introducing DocumentToMDStore datastore definition holding mappings between dataset identifier and mdstore indetifier holding given dataset

#118 introducing LogEntry related comment in avdl file

#118 introducing log entry 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 changing DocumentContentUrl#contentSize field type from string to int