================
* Added ``PoolManager`` with LRU expiration of connections (tested and
documented).
* Added ``ProxyManager`` (needs tests, docs, and confirmation that it works
with HTTPS proxies).
* Added optional partial-read support for responses when
``preload_content=False``. You can now make requests and just read the headers
without loading the content.
* Made response decoding optional (default on, same as before).
* Added optional explicit boundary string for ``encode_multipart_formdata``.
* Convenience request methods are now inherited from ``RequestMethods``. Old
helpers like ``get_url`` and ``post_url`` should be abandoned in favour of
the new ``request(method, url, ...)``.
* Refactored code to be even more decoupled, reusable, and extendable.
* License header added to ``.py`` files.
* Embiggened the documentation: Lots of Sphinx-friendly docstrings in the code
and docs in ``docs/`` and on https://urllib3.readthedocs.io/.
* Embettered all the things!
* Started writing this file.