Message tracing:Disconnect between message instances in Message view and corresponding nodes in Diagram view

1. Run CBRroute project as Local Camel Context
2. Connect to running route in JMX Navigator
2. Turn on message tracing
3. Drop messages on on consumer endpoint
4. In Messages view, select a message instance.
Diagram view doesn't display the context's routes/nodes, so then it wouldn't display the node and its metrics for a particular message trace selected in Messages view