Merge pull request #19 from EvaSDK/master

RST + typo fixes on README.rst
Fix pep8 warning
Fix a satanic typo
Support will remove dumb support
Fix filename for binary distribution
Add an option to disable release file renaming

Fix pull request #20
Add a setting for the cache ttl
Erase the update_at package of mirrored package in the web interface

Fixes #18
Fill the changelog
Build wheel archive and serve binaries

This is a start of an experimental feature.
The aim is to compile wheel archive on the mirror
from the PyPI archive.

For exemple,
pip install --use-wheel gevent is built only
once on the mirrored, and servers that need
to install gevent did not need a compiler anymore.
The mirror and the server must use the same architecture
to get this working.

Of course, this is disable by default.
Simplify the wheel creation
Fix wheel format build for external url
Fix wheel generation with .zip file
Fix security issues with archive extraction
Drop checksum urlfragment when try to create wheel with download_url_file
Release 0.9
Release 0.9.1