 -- Benoit PECCATTE <benoit.peccatte@normation.com> Tue Sep  9 08:52:55 CEST 2014
  * Version 2.0
  ** Rewrite with normal ordering and {}
 -- Benoît Peccatte <benoit.peccatte@normation.com> Fri Oct 17 14:10:43 CEST 2014
  * Version 3.0
  ** Use rudder_common_report instead of reports:
 -- Alexis Mousset <alexis.mousset@normation.com> Wed Mar 16 15:31:23 2016
  * Version 3.1
  ** Add a free component field
