title: what to return in onStartCommand for a service
body: <p>I have been looking through the documentation and sometimes the <code>onStartCommand()</code> returns <code>START_NOT_STICKY</code>, sometimes it returns the following:</p>
  
  <pre><code>@Override
  public int onStartCommand(Intent intent, int flags, int startId) {
      // TODO Auto-generated method stub
      return super.onStartCommand(intent, flags, startId);
  }
  </code></pre>
  
  <p>I am now confused as to why some services return <code>super.onStartCommand(intent, flags, startId);</code></p>