Tag to be used ONLY WITH NIGHTLY BUILDS of the master branch of atlas/athena. Updates since 2.0.10: - Upgraded KLFitter to version 1.2.0; - Upgraded HDF5 to version 1.10.2, and switched to building it with CMake; - Upgraded lwtnn to version 2.7.1; - Upgraded all projects to use LCG_94, with the exception of AnalysisBaseExternals (for now).