Closes #121 - Combined properties classes into FluoConfiguration

Pull request for #121

Fluo Configuration extends Apache Commons Configuration. Created unit test and updated
implementation to use new configuration class.  Added methods to verify
if configuration is set properly for client, admin, worker & oracle.
As I commented elsewhere, this method could possibly document which props are required.    Could point to them using javadoc @see (I think thats what its called)