Recreate Special:AllPages and other special pages?

The old MediaWiki page had http://biopython.org/wiki/Special:AllPages in the sidebar which was useful when browsing the content, and for ensuring search engines found everything. For now we can browse the source at https://github.com/biopython/biopython.github.io/tree/master/wiki

This can probably be done quite easily with the same liquid templating as used on the recreated wiki tag/category pages via https://github.com/biopython/biopython.github.io/blob/master/_layouts/tagpage.html

See also https://www.mediawiki.org/wiki/Special:SpecialPages - there may be others worth resurrecting.

Note we'd want to white-list `wiki/Special:AllPages` again in `robots.txt`