New upstream release of authconfig.
    
    - backup also passwd and friends when toggling enableshadow (#853074)
    - use the new smb.conf idmap config range syntax (#850824)
    - use local_users_only with pam_pwquality (#849072)
    - enable the authlogin_nsswitch_use_ldap SELinux boolean when enabling LDAP (#846084)
    - preserve the value of cache_credentials in sssd.conf
    - do not fail PAM session if pam_lastlog module fails
    - use sssd also for automount map (#847823)
    - enable deferred_kinit if cache_credentials is enabled (#814384)