title: mdThemingProvider Angular Material Error
body: <p>I can't figure out why $mdThemingProvider crashes.</p>
  
  <pre><code>var app = angular.module( 'aBMain',['ngMaterial']);
    console.log('3');
  
  app.config(function($mdThemingProvider){
    console.log('4');
  
    $mdThemingProvider.theme('default')
      .primaryPalette('pink')
      .accentPalette('orange');
  </code></pre>
  
  <p>});</p>
  
  <p>Codepen : <a href="http://codepen.io/turcuciprian/pen/mPwBOm" rel="nofollow">http://codepen.io/turcuciprian/pen/mPwBOm</a> check out the console. It's supposed to output 4, why does it hang here? (with an error. What am I missing?</p>