Pylons/webob — pull request #117 by MiCHiLU (2013-08-23 23:48:51+00:00)
Title: Support Response.body_file.tell() method for ZipFile friendly

For example, such as generate the Apple's Passbook.

```python
>>> writer = zipfile.ZipFile(ResponseBodyFile(Response()), 'w')
>>> writer.writestr('zinfo_or_arcname', b'foo')
>>> writer.close()
```

Thanks.