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
added some checks
updated cf names and added relClasses
merged from branch 2.0.0
SCRIPT_COMMENT: fixed deploy.info file to the module dnet-openaireplus-mapping-utils
SCRIPT_COMMENT: Added deploy.info file to the module dnet-openaireplus-mapping-utils