Title: #275: Implement access verification by rhost using ldap_access_order rhost option
@jhrozek I've added the changes you requested (style patches + man + commit name).
Will update backport PRs shortly. Thank you for those suggestions. Let me know if there is
anything else I can improve in these changes.
See the full comment at https://github.com/SSSD/sssd/pull/275#issuecomment-337539562