title: AngularJS model value not updated when I use editor
body: <p>I am using Jhtmlarea and this is my directive:</p>
  
  <pre><code>test.directive('jhtml', function () {
          return {
              restrict: 'A',            
              replace: false,
              link: function (scope, elem, attr) {
                  $(elem).htmlarea({
                      toolbar: [
                     ["bold", "italic", "underline"],
                     ["p", "h1", "h2", "h3", "h4", "h5", "h6"],
                     ["link", "unlink"]]
                  });
              }
          }
      });
  </code></pre>
  
  <p>and this is my code: </p>
  
  <pre><code>&lt;textarea cols="48" rows="17" ng-model="emailDetails.message" jhtml&gt;&lt;/textarea&gt;
  </code></pre>
  
  <p>I can correctly see my textarea turned into editor but when I type into editor my model is not updated. What am I missing? What changes should I implement in the above code?</p>
  
  <p>Any help is greatly appreciated.</p>