Installation (on debian):

    * install dependencies
        # perl ./Build.PL && ./Build equivs
        # dpkg -i libius-dav-htpasswd-perl-deps_*_all.deb
        # aptitude install
        # aptitude install apache2-mpm-itk sudo

    * preinst 
        # mkdir -p $PREFIX/lib/ius-dav-htpasswd
        # useradd -d $PREFIX/lib/ius-dav-htpasswd -m -r -U -s /bin/true ius-dav-htpasswd
        # passwd -l ius-dav-htpasswd

   * installation
    
        # perl ./Build.PL && ./Build test && ./Build install

        # visudo

            [...]

            ius-dav-htpasswd debian-lenny = (root) NOPASSWD: $PREFIX/bin/ius-dav-htuseradd, $PREFIX/bin/ius-dav-htuserdel

            [...]

        # $EDITOR /etc/apache2/sites-available/ius-dav-htpasswd # see ssl-vhost-apache-example.conf
        # htpasswd [-c] $PREFIX/etc/ius-dav-htpasswd/htpasswd.admin ius-dav-htpasswd-admin
        # htpasswd -c $PREFIX/etc/ius-dav-htpasswd/htpasswd.dav ius-dav-htpasswd-master # when using a master user

        # ln -s /usr/local/bin/ius-dav-htuserexpiry /etc/cron.daily/

