D-Net

#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 reading content size from newly introduced DocumentContentUrl#contentSize field not from URLConnection where size is not available when Transfer-Encoding=chunked, setting to 0 when size is not available

#913 introducing support for max file size parameter, currently checked against Content-Lenght header

affiliation's address and country code passed from Cermine to Avro

fixing converter code after recent Affiliation.avdl refactoring and adding countryCode field, renaming contry to countryName

convertBibEntry() made public