Implement Request Observers and Request Tracker
Formatting
Refactor of Andrew's branch to add service monitoring.
Some tests repaired
Add SpiceServiceListenerNotificationService, base class to monitor a spice service through notifications.
bad file in tree.
Add working implementation of SpiceServiceListener using notifications.
Code clean up.
Provide monitored service to subclasses.
Add checkstyle plugin to lifecycle mapping exception to get things work without warnings on Kepler.
Add new RequestProcessingContext to SpiceServiceListeners
Minor merge problems.