Description of problem:
When RHQ server is starting the partition event of type OPERATION_MODE_CHANGE (DOWN -> NORMAL) is invoked. However, there is no dual event generated, when server goes down, so if user displays all partition events it is quite counterintuitive, because there is a lot of DOWN -> NORMAL events and no NORMAL -> DOWN event.

Method TopologyManagerBean.updateServerMode() or even better ServerManagerBean.establishCurrentServerMode() should be called in some AS shutwdown hook or registered an MBean implementing the StartupServiceMBean.stopService() could do the work. 

Version-Release number of selected component (if applicable):
4.6.0-SNAPSHOT

How reproducible:
always