public MiniSolrCloudCluster(int numServers,Path baseDir,JettyConfig jettyConfig) throws Exception {
  this(numServers,baseDir,DEFAULT_CLOUD_SOLR_XML,jettyConfig,null);
}

public MiniSolrCloudCluster ( int numServers , Path baseDir , JettyConfig jettyConfig ) throws Exception { this ( numServers , baseDir , DEFAULT_CLOUD_SOLR_XML , jettyConfig , null ) ; }
create a minisolrcloudcluster with default solr . xml
