including the entire response object in cache.put (#7)

Author: habdelra

lib/express-http-server.js

@@ -74,7 +74,7 @@ class ExpressHTTPServer {
     res.send = (body) => {
       let ret = send(body);
 
-      this.cache.put(path, body)
+      this.cache.put(path, body, res)
         .then(() => {
           this.ui.writeLine(`stored in cache; path=${path}`);
         })