New upstream release 1.6.0
    https://fedorahosted.org/sssd/wiki/Releases/Notes-1.6.0
    Add host access control support for LDAP (similar to pam_host_attr)
    Finer-grained control on principals used with Kerberos (such as for FAST or
    validation)
    Added a new tool sss_cache to allow selective expiring of cached entries
    Added support for LDAP DEREF and ASQ controls
    Added access control features for Novell Directory Server
    FreeIPA dynamic DNS update now checks first to see if an update is needed
    Complete rewrite of the HBAC library
    New libraries: libipa_hbac and libipa_hbac-python