First cut service discovery - working in progress
Using watcher to track changes of service in zookeeper
Renamed to ZKDiscoveryService
Fixing test cases and adding better documentation to APIs
Moved zookeeper API from main into API section.
Modified getChildren to be async
Moved zookeeper to right place under API
Made it completely asynchronous
Moving class around.
Clean up ZKDiscoveryService and makes it more async.