Canonicalization

[nils-werner]

Currently there are three major forks of this floating around:

• https://code.google.com/p/pymf/ (afaik also the one on PyPI)
• https://github.com/nils-werner/pymf (created at a time when you had no GitHub repo)
• https://github.com/cthurau/pymf

This is very unfortunate and confusing for new users.

Could you please canonicalize them in a way that's understandable by users? E.g. delete google code, merge the few changes from mine and make your GitHub repo the only one?