[maven-release-plugin] copy for tag dnet-openaireplus-mapping-utils-2.0.2
revised tests
added one more test for organizations
fixed test
derp changes
removed protocolbuffers dependency from dnet-pace-core, Builders and Proto specific tests moved in dnet-openaireplus-mapping-utils, adapted dnet-mapreduce-jobs
class moved to src/main/java
unit test
merged from branch 2.0.0
extended helper, fixed subrel's attributes propagation
almost working workflows on hbase