D-Net

[maven-release-plugin] copy for tag dnet-openaireplus-mapping-utils-5.0.7

depending on updated proto model: added inverse relation 'affiliates' in table schema definition

using subject vocabulary dnet:subject_classification_typologies instead of dnet:result_subject

merging result instances, get them grouped by hostedby(key)+license(classid)+instancetype(classid)

added query method

added method to count the number of query hits

hbase mapping to consider classid/classname, schemeid/schemename as element attributes (when available)

horrible manual update, I wish we won't need to do this kind of stuff soon...

improved csv serialisation

added a parameter to avoid the index commit