Improvements to post process scripts
bug fixes to better handle Data merging (beware of the naming convention that has to be used for the samples and that are summarised in Output_management_tutorial.md
GitLab jobs artifacts no longer stored forever as of Monday, November 4th 08:30h. Further information under https://cern.ch/otg0152576
bug fixes to better handle Data merging (beware of the naming convention that has to be used for the samples and that are summarised in Output_management_tutorial.md