A simple navigation framework for ionic does not work with nightly or 1.1.0 build

I have created a simple tabbed + sidebar navigation structure for an ionic app.

When I run the app under these versions of ionic, things work fine:

  <link href="http://code.ionicframework.com/0.9.27/css/ionic.min.css" rel="stylesheet">
  <script src="http://code.ionicframework.com/0.9.27/js/ionic.bundle.min.js"></script>

However, either using

<link href="//code.ionicframework.com/nightly/css/ionic.css" rel="stylesheet" />
<script src="//code.ionicframework.com/nightly/js/ionic.bundle.js"></script>

or using

<link href="https://cdnjs.cloudflare.com/ajax/libs/ionic/1.1.0/css/ionic.min.css" rel="stylesheet">
  <script src="https://cdnjs.cloudflare.com/ajax/libs/ionic/1.1.0/js/ionic.bundle.min.js"></script>

the output is not as expected.

I believe 1.1.0 is the latest version and I should be creating my app using it.

What changes do I need to make in order for the application to function as expected with 1.1.0 ?

Plnkr here: