TrigConfBase: Thread-safety fixes for messaging
- const-fix for
outputLevel
method in AthenaKernel/getMessageSvc - Enable static thread checker for TrigConfBase
- Apply the same thread-safety fixes in
TrigConfMessaging
that were done already inAthMessaging
(use a thread-local MsgStream instance) - Add unit test for the standalone and athena use-case
cc @stelzer