SOLR-5219: Rewritten selection of the default search and document clustering algorithms.



git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1521978 13f79535-47bb-0310-9956-ffa450edef68
SOLR-5219: always forget about eol-style...

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1521979 13f79535-47bb-0310-9956-ffa450edef68