title: Worklight 6.1 : navigator.notification.alert is not working in BB10
body: <p>I am running worklight application on bb10 and using phonegap notification but it is not working throwing error which is </p>
  
  <blockquote>
    <p>'undefined' is not an object (evaluating
    'navigator.notification.alert' bb10   </p>
  </blockquote>
  
  <p>What is things i am missing in the project , please let me know. I am using webworks 2.0 in my project.</p>
  
  <p>I tried WL.simpleDialog like this</p>
  
  <pre><code>WL.SimpleDialog.show(
  "My Title", "My Text", 
  [{text: "First Button", handler: function() {WL.Logger.debug("First button pressed"); }
  }]
  ) 
  </code></pre>
  
  <p>After this also m getting the same error.</p>
  
  <blockquote>
    <p>ypeError: 'undefined' is not an object (evaluating
    'navigator.notification.confirm')</p>
  </blockquote>