Move server logic into separate file

This allows us to use the following in our app.

  `import { app } from mu`
  `import app from mu/server`

Author: madnificent

helpers/mu/index.js

@@ -1,9 +1,8 @@
-import express from 'express';
+import app from './server';
 
-var app = express();
+const mu = {
+  app: app
+}
 
-app.listen( 80, function() {
-  console.log('Starting server on port 80');
-});
-
-export default app;
+export { app };
+export default mu;

helpers/mu/server.js

@@ -0,0 +1,9 @@
+import express from 'express';
+
+var app = express();
+
+app.listen( 80, function() {
+  console.log('Starting server on port 80');
+});
+
+export default app;