Permet de locker tout les jobs

- fix UPGRADE path from 3.0 to 3.1 using ALTERNC_LOC old variable in /etc/alternc/local.sh
- Pre-depends on ACL instead of Depends, allow the alternc.config acl script check to work
- update_domains was using /usr/bin/alternc_reload, now migrated to /usr/lib/alternc/

In alternc 3.1 the mail [a..z] folders are created in alternc.install ( so we need to set their perms there )

DEBIAN COMPLIANCE big commit : fixes almost all lintian issues + complete rewrite of debian/rules (now mostly in Makefile at the root of source code) + start using POD2MAN for man pages + remove some old unused and broken tools

PhpMyAdmin sait gérer X serveurs MySQL

Le SSO depuis le panel permet de se loguer sur le bon serveur de l'utilisateur

Tentative de login sur le serveur SSO renvoie sur le meme form, mais avec le serveur suivant

A merger avec branche stable 3.0