[pypy-dev] bugfix PyPy 2.7 v5.3.1 ready for release

[Matti Picus]

We fixed a few bugs and would like to release, please help us make sure 
everything is ready to go.
The downloads are here
https://bitbucket.org/pypy/pypy/downloads
the donwload page has been updated
http://pypy.org/download.html
and the release notice is ready to be posted to the blog
http://doc.pypy.org/en/latest/release-pypy2.7-v5.3.1.html
http://doc.pypy.org/en/latest/whatsnew-pypy2-5.3.1.html

Let me know if something needs fixing...
Thanks
Matti