Tag to be used with the master branch of atlas/athena. Update(s) since 2.0.34: - Updated to Acts v0.10.1; - Small update in Findmccabe.cmake to make it more future proof; - Multiple updates from 1.0.X that were necessary for AnalysisBaseExternals and AthAnalysisExternals with GCC 8 on CentOS 7.