D-Net

#840 moving IdentifierMapping from importer to common package

#840 renaming DeduplicationMapping to more generic IdentifierMapping

imports cleanup

#637 treemap->hashmap, order is not preserved anyway

#637 introducing ISLookup based vocabulary importer

introducing cloudera repository in parent container, removing repository definitions from individual IIS modules

removing obsolete comment

#433 introducing natural citations ordering

updating test

updating default job.properties