This only affects scenarios which do not us group models. Due to
refactoring of the group model the group size distribution is
set by source. This allows different source to spawn different group
sizes.

Each JoltTransformation is create as a Singletone from the abstract
JoltTransformation class. These classes manage the transformation and
postHook processing if needed. All resource files were renamend to
automatically build resources names based on the current version alone.