added configuration "include.children"
added configuration id and some more clustering functions
adding configuration id and some more clustering function
merged branch ProtoMapping
refactored normalization functions, updated cleanup behavior
fixed blacklist type
added toString
extended dedup configuration, including now blacklists and algorithm parameters
removed protocolbuffers dependency from dnet-pace-core, Builders and Proto specific tests moved in dnet-openaireplus-mapping-utils, adapted dnet-mapreduce-jobs
merged from branch 1.1.0