only dump error when http is not 200 response. also created special http error.

upload.go

 	}
 	defer r.Body.Close()
 
-	dump, err := httputil.DumpResponse(r, true)
-	if err != nil {
-		log.Fatal(err)
-	}
-	fmt.Printf("dump : %s", dump)
-
 	b, _ := ioutil.ReadAll(r.Body)
 	resp = string(b)
-	log.Println(resp)
 
+	if r.StatusCode != 200 {
+		debugDumpHTTPResponse(r)
+		err = errorHTTPResponseNew(r, r.Header.Get("X-Status-Reason"))
+	}
+	//log.Println(resp)
 	return
+}
 
+func debugDumpHTTPResponse(r *http.Response) {
+	dump, e := httputil.DumpResponse(r, true)
+	if e != nil {
+		log.Fatal(e)
+	}
+	fmt.Printf("dump : %s", dump)
 }