Revision 885385

Made the ZooKeeper Server Running Bundle reconfigurable.

The ZooKeeper server is configured through the OSGi Configuration Admin service.
PID = org.apache.cxf.dosgi.discovery.zookeeper.server

Required configuration setting:
  clientPort
(an example value would be clientPort=2181)

All other configuration settings (such as tickTime, initLimit, syncLimit & dataDir) are defaulted. The configuration properties supported are exactly the same as the ones supported by ZooKeeper in the config/zoo.cfg file. 

Reconfiguration support:
* The ZooKeeper server is started when a configuration object with the relevant PID appears.
* Removing the configuration object with the relevant PID will stop the server.
* Changing the configuration information will cause the ZooKeeper server to be restarted within the OSGi Framework with the changed configuration.