def manage_addGroup(newgroup_name, newgroup_type='groupOfUniqueNames',
    REQUEST=None):
    """ Add a new group under the group record base of type
        ``newgroup_type``. If REQUEST is not None a MessageDialog screen will
        be returned. The group_name argument forms the new group CN while the
        full DN will be formed by combining this new CN with the group base DN.

        Since a group record cannot be empty, meaning there must be at least
        a single uniqueMember element in it, the DN given as the binduid in
        the LDAPUserFolder configuration is inserted.

        Permission: *Manage users*
        """
