Import extra_user_filter, local_groups, and implict_mapping settings (these were already being exported).
Import & export LDAP group to Plone role mappings

Because these cannot currently be set via Plone (NotImplemented exception
in Products.PloneLDAP.mixins.groupmgmt), these must be set via the
LDAPUserFolder in the ZMI, and should be saved/restored with the rest of the
LDAP settings.