upload zipped post body

I'm pretty sure this is generating a correct request.  Using HTTPScoop on my Mac, I see the correct POST body uncompressed, but with ngrep I see a compressed body. That leads me to believe that HTTPScoop is detecting compression from the Content-Encoding header and decompressing it for my viewing pleasure, and that the compression is therefore correct.

![Screen Shot 2013-01-29 at 12 54 48 PM](https://f.cloud.github.com/assets/6990/107942/4b5416fa-6a3d-11e2-9d4e-cbb613a4fc7c.png)

![Screen Shot 2013-01-29 at 12 54 57 PM](https://f.cloud.github.com/assets/6990/107943/4f66a898-6a3d-11e2-967b-1f3206e1aa81.png)

![Screen Shot 2013-01-29 at 12 55 28 PM](https://f.cloud.github.com/assets/6990/107944/527c8b24-6a3d-11e2-9dd6-d43100462115.png)