RootHistSvc and MessageSvc

This may address some of the warnings (supposedly 'FATAL') that we see appear...

assigned to @wdconinc

added 1 commit

• ceb5099b - Add RootHistosSink

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added 12 commits

• ceb5099b...abd854de - 10 commits from branch master
• 10a50ced - RootHistSvc and MessageSvc
• 3b7ad344 - Add RootHistosSink

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added 12 commits

• 3b7ad344...5386d9f8 - 10 commits from branch master
• fd711c25 - RootHistSvc and MessageSvc
• aae0f091 - Add RootHistosSink

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merged