</Directory>
Alias /roundcube/program/js/tiny_mce/ /usr/share/tinymce/www/
-Alias /roundcube /var/lib/roundcube
+Alias /roundcube /var/lib/roundcube/public_html
<Directory "/var/lib/roundcube">
AuthUserFile /etc/apache2/htdigest
AuthGroupFile /etc/apache2/htgroups