0.3.1 -- Fixes http post issue

See my commit on 42cd063476b97b87c5ca933c67a5a54416ffdb87

|     dont use urlencoded() middleware
|     
|     bodyParser does these three things:
|     
|     app.use(express.json());
|     app.use(express.urlencoded());
|     app.use(express.multipart());
|     
|     I haven't tracked down the *exact* cause, but I'm pretty close. In any
|     case the urlencoded() middleware breaks POSTs going through the proxy.
|     
|     See https://github.com/kbaribeau/node-proxy-timeout-test