D-Net

added organization id in api + funder in organization + reload vocabularies once a day

Using repository vocabulary loader with datasource manager instead of IS lookup

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

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

Adding a property in the search service profile to distinguish between public/prepublic versions

Resolving 2 issues
- #862 Updated the query parameter that search service sends to index service. The extra "query=" was removed. It was causing CQL parser error.
- #348 It partially resolves the issue with the rss format. The format is supported but the openSearch descriptor is still missing.

added rss opensearch results

added a blackboard listener to accept index modification messages