Importing documentation from the wiki. I have edited it to fit the documentation better. I don't know who wrote the original text, which was written at the end of 2001, but parts of it was probably written by Paul Joseph Thompson who became project leader at that time. Due to the nature of the wiki it's hard to tell what's edited since it was first published and who the original author is. Some older versions are preserved by the Internet Archive Wayback Machine at <http://web.archive.org/collections/web.html>.