This library is DEAD. It was a useful experiment and is now being replaced under the scope of the Teepee (experimentation grounds at the present) and Hyper (actual, usable HTTP stuff) projects.
For some more information on what’s happened/happening with it all, see http://chrismorgan.info/blog/introducing-teepee.html.
YOU SHOULD NOT USE THIS LIBRARY AT ALL. If you want to use HTTP, I recommend you use Hyper_ for the moment.
.. _Teepee: http://teepee.rs/ .. _Hyper: https://github.com/hyperium/hyper