Allow zk_test_mkdirp to use an alternate zookeeper server URL
Allow zk_test_mkdirp to use an alternate zookeeper server URL

dfsxdev/node-zookeeper,mdlavin/node-zookeeper,dfsxdev/node-zookeeper,mdlavin/node-zookeeper,dfsxdev/node-zookeeper,mdlavin/node-zookeeper,yfinkelstein/node-zookeeper,dfsxdev/node-zookeeper,yfinkelstein/node-zookeeper,dfsxdev/node-zookeeper,yfinkelstein/node-zookeeper,mdlavin/node-zookeeper,yfinkelstein/node-zookeeper,mdlavin/node-zookeeper