Hi folks, I ran into a problem where I had to connect to two different Zookeeper clusters from the same JVM app but one of the clusters required authentication while the other does not. Using System properties prevented my app from connecting to the non-authed cluster so I wrote a config class and some code to let me override the System values on a per client basis. Please take a look at the patch and give me your constructive feedback. Thanks! https://issues.apache.org/jira/browse/ZOOKEEPER-2103
