title: Android-Titanium-Sample project does not fire pushwoosh callback function
body: <p>var pushnotifications = require('com.arellomobile.push');
      Ti.API.info("module is => " + pushnotifications);</p>
  
  <pre><code>pushnotifications.pushNotificationsRegister("595043289423", "60666-9265D", {
      //NOTE: all the functions fire on the background thread, do not use any UI or Alerts here
      success:function(e)
      {
          Ti.API.info('TITAIUM!!! JS registration success event: ' + e.registrationId);
  
          alert('TITAIUM!!! JS registration success event: ' + e.registrationId);
  
  
      },
      error:function(e)
      {
          Ti.API.error("TITAIUM!!! Error during registration: "+e.error);
          alert("TITAIUM!!! Error during registration: "+e.error);
      },
      callback:function(e) // called when a push notification is received
      {
          alert("in callback");
          Ti.API.info('TITAIUM!!! JS message event: ' + JSON.stringify(e.data));
          //alert('notification data is=' +JSON.stringify("notification data="+e.data));
  
  
      }
  });
  </code></pre>