 -- Benoît Peccatte <benoit.peccatte@normation.com> Fri Oct 17 14:10:43 CEST 2014
  * Version 2.0
  ** Use rudder_common_report instead of reports:
 -- Nicolas Charles <nicolas.charles@normation.com> Wed Jun 14 15:07:55 2017
  * Version 2.1
  ** Add exception for non-existent files
 -- Nicolas Charles <nicolas.charles@normation.com> Fri Dec  8 16:39:15 2017
  * Version 2.2
  ** Port technique to multi-versioned format
