- fix source url

- Update to 4.0.11
* Small improvements to the documentation and tested with Python 3.6
- Update to 4.0.10
* Improved the documentation thanks to Tony Goodchild (zearin) who also
provided a much better CSS than the one I was using.
- Update to 4.0.9
* Same as 4.0.7 and 4.0.8, re-uploaded due to issues on PyPI.
- Update to 4.0.7
* Switched to a new changelog format (the one in http://keepachangelog.com/)
since it was contributed by Alexander Artemenko. Re-added a newline to support
old version of Python, as requested by [azjps](https://github.com/azjps).
- Update to 4.0.6
* Removed a file x.py accidentally entered in the tarball.
- Update to 4.0.5
* Documented a quirk signaled by David Goldstein when writing decorators
for functions with keyword arguments. Avoided copying the globals,
as signaled by Benjamin Peterson.
- Update to 4.0.4
* Included a patch from Zev Benjamin: now decorated functions play well
with cProfile.
- Update to 4.0.3
* Added a warning about the memoize example, as requested by Robert
Buchholz.
- Update to 4.0.2
* docs/README.rst was not included in MANIFEST.in by accident,
thus breaking the source installation.
- Update to 4.0.1
* Added docs directory and upload_docs command. Fixed bug with