Merge pull request #528 from tejasmanohar/rid_of_instanceof_hack

get rid of instanceof hack in application constructor

lib/application.js

@@ -39,7 +39,6 @@ module.exports = class Application extends Emitter {
   constructor() {
     super();
 
-    if (!(this instanceof Application)) return new Application;
     this.env = process.env.NODE_ENV || 'development';
     this.subdomainOffset = 2;
     this.middleware = [];