MonitoringQueue refactored

Change-Id: Ifb589789405d8b232aa8665b53ef03c8d33666a4
average stats added

Change-Id: I585b28f82d985468b5eb536c0a28ccb099bb387d
mbean statistics fields fixed

Change-Id: If1a59589f5f7d8cf6e15c8fcd1c45cee82089c34
mbean app name changed

Change-Id: If68101568947284c1f45f2c23f586cd0348ebc88