SOLR-5678: SolrZkClient should throw a SolrException when connect times out rather than a RuntimeException.

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1565056 13f79535-47bb-0310-9956-ffa450edef68
SOLR-5678: Fix CHANGES entry

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1565057 13f79535-47bb-0310-9956-ffa450edef68
SOLR-4072: Error message is incorrect for linkconfig in ZkCLI.

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1565059 13f79535-47bb-0310-9956-ffa450edef68