version 3.12
20081107: add possibility to change the modtool account in a class for the supervisor
          when import from test class, no ask for save the class (it was very tricky for people ...)
20080702: add variable daymessage in config help for personnal homepage (Fabrice Guerimand)
20080618: Add interface to ldap authentification (BPR)
20080617: Add class parm examshow : the past backup exams can be hiden to the students (BPR)
20070713: Add job=oefdefault : permet de donner des valeurs par defaut aux options des modules oef (FG)
