Small improvements to the documentation and tested with Python 3.6
4.0.10
Improved the documentation thanks to Tony Goodchild (zearin) who also provided a much better CSS than the one I was using.
4.0.9
Same as 4.0.7 and 4.0.8, re-uploaded due to issues on PyPI.
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).
4.0.6
Removed a file x.py accidentally entered in the tarball.
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.