1) Cleaned up God class HubMain.
2) Removed Standalone Zookeeper. Zookeeper Testing server is used for both java integration tests and single mode hub.
3) Cleaned up integration test setup.
4) Refactored some tests for better readability.
5) Renamed ZookeeperProperties class Zoo(K)eeperProperties to maintain a standard naming convention
6) Moved all properties class to its own package.
1) Cleaned up God class HubMain. 2) Removed Standalone Zookeeper. Zookeeper Testing server is used for both java integration tests and single mode hub. 3) Cleaned up integration test setup. 4) Refactored some tests for better readability. 5) Renamed ZookeeperProperties class Zoo(K)eeperProperties to maintain a standard naming convention 6) Moved all properties class to its own package.