Attic is a fork of the fantasticly simple Textloft with git versioning support. Description from the Textloft README:
Sometimes all you need is a place to put your text.
(Yet another) Dead-simple PHP wiki. Responsive layout, LESS, Markdown, iOS web-app capable and HTML5 rolled into a tiny little package.
Basically, I really liked gollum but wanted something I could drop in any old folder on any old Apache server and have an instant wiki.
- Attic isn't ready to be used yet...