properly fail when you define multiple control flow nodes with the same name
requested to merge NN_ThisIsNotABranchNameMeasuringConteeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeest into master
fixing #81 (closed)
also change m_allVNodes to a map
depends on gaudi/Gaudi!1049 (merged)