Merge branch 'cherry-pick-3ff2be63' into 'master'

Propagate merge branch 'gcorti-forv96r4p4' into 'Sim09' to master

Changes to build Gauss v49r6p4 with cmt

Changes in project.cmt to depend from Gaudi v27r1. Also changes in requirements of g4config to match environment variable

See merge request !9

See merge request !10