Microfiber 14.01

Switched from Python standard lib `http.client` to `degu.client`, which gives us:

  * benchmark_microfiber.py with `degu.client` is roughly ~24% faster than with `http.client`

  * lower baseline memory usage as `http.client` imports a lot of modules that `degu.client` doesn't, especially all the `email.foo` modules

Note that although none of the public, documented Microfiber API has change, this does change a few internals that some people might have been using. In particular, the request header names must now be lowercase, and the response object returned by CouchBase.request() and CouchBase.raw_request() has changed.

The response is now a (status, reason, headers, body) namedtuple, and the body will be None when there is no response body to read. To do the equivalent of response.read():

>>> data = (b'' if response.body is None else response.body.read())

We might tweak this for next month's release. If you use this low-level API and have an opinion either way, please let us know!

Degu is a new Novacut component that includes an HTTP server (based on Dmedia HTTPD), a low-level HTTP client, and a shared parser plus IO abstractions used by both the server and client:

    https://launchpad.net/degu

Start on Degu docs (still very incomplete):

    http://docs.novacut.com/degu/index.html