requested to merge ATLAS-EGamma/athena:CaloEvent_Thread_safety_checker into master
On this one
- The CaloCluster in this package is not
thread-safebut most probably does not need to be as most code should use the
- a few
- Mark a few const-setter as
thread-unsafewe need to see if these are used or also Run-I legacy.
testcode does not need to be necesserily