Tag to be used with the main branch of atlas/athena.
Update(s) since 2.0.171:
- Multiple tweaks to FindGaudi.cmake:
* Set helper variables for Gaudi/ROOT to find VDT;
* Avoid CMake errors if Gaudi is not found;
* Handle find_package keyword arguments correctly;
- Replaced the error messages in the converter generating code with warnings in AtlasLibraryFunctions.cmake, when Gaudi is not found;
- Made atlas_add_test(...) more resilient against using "-NOTFOUND" variables in its arguments.