EG/HM: First start with own JoinComponent and joinQueryParserPlugin
JPM/HM: join with facet made possible
HM/JPM: supporting multiple facets; next up: support multiple cores
HM: JoinFacet in multiple cores
JPM/HM: added support for joining (query+drilldown) over mulitple cores (2 and more).
JPM/HM: took care of interesting edge cases (tested in SolrServerTest)
JPM/HM: SolrIndexSearcher instances decref'ed and SolrCore instances closed where appropriate
JPM/HM: Added simple first performance test;
JPM/HM: FacetComponent working with solr join functionality
HM: utils.java; join test to solrjointest
JPM/HM: Removed JoinComponent; Removed parsing joinFacet.field query; Removed unused myjoin tests
JPM/HM: Updated license
JPM/HM: Fixed defaults for suggesions test
HM/JPM: parsed joinQueries in Cql2SolrLuceneQuery; joinQueries added to filterQueries + support for joinFacets
HM/JPM: fixed tests
TS/JPM: adding support for facet joins on chosen fields; introducing unit tests
HM/JPM: joinFacet.field argument supports 'from' and 'to' fields (Note that facet counts on 1-on-n joins are inconsistent with respect to the original query result).
HM/JPM: support for 1-n joins on chosen fields in JoinFacetComponent (mostly in IdSet)
JPM/HM: Build dep on solr4