This new feature allows to trigger list creation when a message is sent for the list. The set
of "possible" lists is defined by a generic mail alias and a list family. New sympa.conf parameter
include : automatic_list_feature, automatic_list_creation, automatic_list_removal,
          pidfile_creation, queueautomatic, clean_delay_queueautomatic
A new familiqueue.c binary file is provided.
The list creation job is performed by a sympa.pl process that forks.
Check the documentation for more informations.


git-svn-id: https://subversion.renater.fr/sympa/trunk@3934 05aa8bb8-cd2b-0410-b1d7-8918dfa770ce