WunderWiki
I added a simple wiki as a demo for WunderBar. It demonstrates shelling out to handing multiple URIs, handing get/post, dealing with both unescaped text and markup, shelling out to commands, AJAX, CSS, jQuery.
The demo relies on git and rDiscount to do the version control and markup processing. It also doesn’t have all the features that you would expect from a wiki, such as conflict detection and resolution.