SOLR-5586: All ZkCmdExecutor's should be initialized with the zk client timeout

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/lucene_solr_4_6@1554105 13f79535-47bb-0310-9956-ffa450edef68
tests: enable test

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/lucene_solr_4_6@1554106 13f79535-47bb-0310-9956-ffa450edef68