Update to 0.9.10
    
    - New upstream release 0.9.10
      - smbldap_tools.pm: read_user_human_readable: Protect attribute values from
        Encode::decode_utf8() with Encode::FB_CROAK
      - smbldap_tools.pm: add is_attr_single_value() to check if a specified
        attribute is defined as single-value in the LDAP schema
      - smbldap-useradd, smbldap-usermod: check if mailRoutingAddress attribute is
        single-value or not
      - smbldap-usermod: remove mailRoutingAddress attribute if empty
      - smbldap-usermod: suppress "no such attribute" error on remove mail or
        mailLocalAddress attribute when already absent
    - BR: /usr/bin/pod2man for man page generation
    - smbldap-config now a regular script rather than treated as documentation
    - Add POD to smbldap-config so we don't generate an empty manpage
      (https://gna.org/support/index.php?3013)