Copy src/doc/**/{*.html|*.css} to server/public...

This is useful because Haml, though quite pleasant to use when you're rendering partials in Rails land, is a somewhat unforgiving format for writing documents, and is not archival. (Haml and the associated tooling might be quite obscure 10+ years from now when someone trawls through the repo for docs,  whereas HTML/CSS/JS will be around in some for or another for a very long time.)