Merge pull request #56 from jonathanong/bind-onerror

bind .onerror to context

lib/application.js

@@ -229,5 +229,6 @@ function createContext() {
     this.req = req;
     this.res = res;
     this.cookies = new Cookies(req, res);
+    this.onerror = this.onerror.bind(this);
   }
 }