title: mdVirtualRepeatContainer can't be found
body: <p>Trying to get <code>md-virtual-repeat</code> to work but getting in the console:</p>
  
  <p><code>Controller 'mdVirtualRepeatContainer', required by directive 'mdVirtualRepeat', can't be found!</code></p>
  
  <p>I have a <code>&lt;md-virtual-repeat-container&gt;</code> with a <code>&lt;tr md-virtual-repeat="row in table" md-item-size="25"&gt;&lt;/tr&gt;</code> inside of it. Working with angular-material 0.10.1 and angular 1.4.2.</p>