title: Default value given in ng-model is not selected in drop down
body: <p>I was trying simple select drop down in my app. Where I have set a default value in ng-model. But on load the drop down does not select the ng-model value.
  Below are my codes:</p>
  
  <p>HTML:</p>
  
  <pre><code>View &lt;select  ng-model="viewby" ng-change="setItemsPerPage(viewby)"&gt;&lt;option&gt;3&lt;/option&gt;&lt;option&gt;5&lt;/option&gt;&lt;option&gt;10&lt;/option&gt;&lt;option&gt;20&lt;/option&gt;&lt;option&gt;30&lt;/option&gt;&lt;option&gt;40&lt;/option&gt;&lt;option&gt;50&lt;/option&gt;&lt;/select&gt; records at a time.
  </code></pre>
  
  <p>Js:</p>
  
  <pre><code>$scope.viewby=3             
    $scope.setItemsPerPage = function(num) {
      console.log( num);
    }
  </code></pre>
  
  <p>Here ng-change is working perfectly.
  Here '3'  should be selected on load. I tried ng-init and selected='selected'  also and both are not working. Any suggestion will help.--thanks</p>