Priority changes to DAGMan reflected in jobs submitted by DAGMan #3389
Release log for self #3389

Use the destructor intelligently

Do not execute priority change all the time. Make sure it is a JobPrio
event.

Eliminate extra variable
Never truncate the log for the dagman job #3389

Add eventSource to ULogEvent structure

We don't care about clusterId of job. Should not check cluster, just
check event source