Increased Reggie scalability for client remote event notifications, event notification executor is now multi threaded.  In response client code is now expected to deal with out of order event arrival.  ServiceDiscoveryManager and some specification compliance tests in the qa suite, now utilize a Comparator to order remote event notifications prior to processing.  This complies with the Jini Event Specification.

Replaced Vector parameters in some methods in the qa suite with List, without changing test functionality.

Reorganized NonActivatableGroupImpl due to some deadlocks experienced occasionally in some tests during classloading.

git-svn-id: http://svn.apache.org/repos/asf/river/jtsk/skunk/qa_refactor/trunk@1588431 13f79535-47bb-0310-9956-ffa450edef68