some info! logs for Request and Response

src/response.rs

@@ -16,6 +16,7 @@ pub struct Response {
 }
 
 pub fn new(res: ::hyper::client::Response, gzip: bool) -> Response {
+    info!("Response: '{}' for {}", res.status, res.url);
     Response {
         inner: Decoder::from_hyper_response(res, gzip)
     }