Workaround for an agressive cleanup (gStyle == 0) in root 5.34.18.
Adapt to changes in ServiceRegistry.
Workaround for bug in root 5.34.18.
Adapt to changes in ServiceRegistry.
Fix root version ifdef.
Remove m_event member from FWPathsPopup.
Merge pull request #4458 from alja/newServiceRegistry71

fix cmsShowFF crash -- root 5.34.18 & new ServiRegistry interface