update compiler requirements
Due to recent additions (e.g. !223 (merged)) which rely on C++-14 features, more recent compiler versions are required. The example on how to build ACTS on lxplus has been updated as well.
Closes ACTS-248.
Due to recent additions (e.g. !223 (merged)) which rely on C++-14 features, more recent compiler versions are required. The example on how to build ACTS on lxplus has been updated as well.
Closes ACTS-248.