D-Net

- synchronized for SolrClient query
- synchronized for get client from cache
- zookeeper version changed to 3.4.5-cdh4.3.0

changed configuration to get the value of subject taxonomy from dnet:subject_classification_typologies IS vocabulary. Related to #701#note-17

- mdformat field is exposed on search service profile <PROPERTY value={mdformat} key="mdformat"/>
- mdformat field is changed when blackboard message is received and the new value is updated in search service profile
- if the search service profile exists and contains the mdformat property the search service parameter is set based on this value. if not the value is set from services.search.mdFormat property...

Setting services.search.infrastructure default value to shadow - Closing #958

Closing #925 - empty fromDate results in resultdateofacceptance within * ...

sygma datasource xsl updated to be compatible with sygma.xsd

changed sygma schema to be compatible with xs:sequence of sygma.xsd

taking care of multiple ids for objidentifier, relpersonid, resulthostingdatasourceid, relprojectid - closing #926

Closing #348 - added descriptor for opensearch and produce the correct result

Closing #928 #930 #931 with refinements in api parameters and error messaging - Closing #894 introdusing sygma model