protobuf_json is not listed on PyPI - nobody can find it

```
If an open source Python module is not listed on https://pypi.python.org/pypi/, 
it doesn't exist.  Nobody can find it, use it and depend on it.

Please upload the latest version to PyPI.
```

Original issue reported on code.google.com by `g...@google.com` on 9 Jun 2014 at 6:27
