Extract style informations about Python projects.

• pystyle-crawl crawls pypi (via RSS) and github.
• pystyle-update updates json files to be commited in https://github.com/JulienPalard/pystyle-data.

So a typical run is:

$ pystyle-crawl ./git-clones/
$ pystyle-update ./git-clones/ ../pystyle-data/github.com/