JetUncertainties: enable thread-checker and fixes
Enable thread-checker and fix warnings. Mark JetUncertaintiesTool as
not thread-safe due to the use of the static EventInfo cache (and
the use of TRandom3).
Enable thread-checker and fix warnings. Mark JetUncertaintiesTool as
not thread-safe due to the use of the static EventInfo cache (and
the use of TRandom3).