#911 [HHQ-1728] Currently Down needs lots of work

[Hyperic Team]

http://jira.hyperic.com/browse/HHQ-1728
The CurrentlyDown screen is unusable. Reloading the page several times shows massive differences in things which are available. IN addition, services which should be unavail are not showing up (when their respective servers are unavail)

In addition, watching the logs shows a huge amount of cache invalidations, and the # of events processed in the zevent Bus (for the down metrics calculator) is much higher than the # of resources which have ever been down.