Changes to Solr indexing building.

Added method to SolrSetup to make IndividualToSolrDocument.
Changed ThumbnailImageURL to use RDFServiceFactory.
Adding SolrQueryTest.java
Merge remote-tracking branch 'origin' into develop
Merge branch 'develop' of github.com:vivo-project/Vitro into develop
Merge branch 'develop' of github.com:vivo-project/Vitro into develop
Adding solr client libraries to test task.
Removing old version of solrj from lib
Adding new version of solrj to lib
Adding test of Solr setup and indexing. The SolrSetup test will start a
solr server, load RDF from test/testontologies/SolrQueryTestRDF, index
the individuals in the RDF and then run some test solr queries.
Removed unused build.xml property.