Added automx support.

see #98

installer.cfg

@@ -1,3 +1,7 @@
+[general]
+# %(domain)s is the value specified when launching the installer
+hostname = mail.%(domain)s
+
 [certificate]
 generate = true
 # Choose between self-signed or letsencrypt
@@ -39,6 +43,14 @@ extensions = modoboa-amavis modoboa-pdfcredentials modoboa-postfix-autoreply mod
 # Deploy Modoboa and enable development mode
 devmode = false
 
+[automx]
+enabled = true
+user = automx
+config_dir = /etc
+home_dir = /srv/automx
+venv_path = %(home_dir)s/env
+instance_path = %(home_dir)s/instance
+
 [amavis]
 enabled = true
 user = amavis
@@ -86,6 +98,6 @@ dbuser = spamassassin
 dbpassword = password
 
 [uwsgi]
-enabled = true
+enabled = true 
 config_dir = /etc/uwsgi
 nb_processes = 2