next to the already existing possibilities db and external. If auth_backend is set
to ldap an ldap ressource and an ldap authentication configuration is generated.
Also support for ldap encryption is added.
which defines if user and group should be managed by this module. This gives
you the possibility to manage the user and group with another module or
manually.
The default value is set to true so it doesn't change the existent behaviour
of this module.
