title: Ext.device.Connection.isOnline() is not working in iOS
body: <p>I have an iOS sencha application which needs to check the internet connection. I am using the code if (Ext.device.Connection.isOnline()) 
        {
          alert('Connectivity is available .');
      } else {
          alert('No Network Connectivity.');
              } 
  The above code is working fine with Chrome and safari browsers, but its not working through iOS app. I am using cordova 3.5.0-0.2.6, sencha touch 2.3.1 and Sencha Cmd 5.0.0.160 version</p>
  
  <p>Tested in iPhone with iOS 7.1 </p>