en to read the configuration file. This allows many options that might otherwise have to
                go in the code to go instead in a configuration file.
            </li>
            <li>A powerful templating engine. The
                <a href="http://pythonhosted.org/Cheetah/">Cheetah</a> module
                was chosen for generating html and other types of files from
                templates. Cheetah
                allows <em>search list extensions</em> to be defined, making it easy to extend 