merging trunk changes with IIS-CDH-5.3.0 branch
#1197 introducing job.properties changes aligning paths to rumcajs cluster HDFS structure
creating IIS-CDH-5.3.0 branch
#118 bugfix: shortening node name exceeding 50 chars
#118 enabling document-websiteusage-similiarity exporter module in exporter workflow definition
#919 renaming DocumentToResearchInitiative to DocumentToConceptId and DocumentToResearchInitiatives to DocumentToConceptIds
#919 introducing support for exporting document project concepts, minor research-initatives exporter refactoring
#637 renaming DocumentMetadataActionBuilderModuleFactory to DocumentAffiliationsActionBuilderModuleFactory
#637 renaming document_extractedMetadata algorithm to more descriptive document_affiliations, propagating changes to action set identifier properties names
#691 introducing citations exporter module, updating exporter workflow.xml definition