GeoModel version changed from 4.6.0 to 5.0.1
The change was done via the ATLAS_GEOMODEL_SOURCE CMake var
The main new feature coming with GeoModel 5 is the introduction
of smart pointers in GeoModel core. With these pointers, the client
no longer needs to explicitly call the ref()/unref() methods for
managing the memory of GeoModel objects.
Edited by Vakhtang Tsulaia