title: Qt5 forward signals
body: <p>Using the old syntax, it was possible to forward a signal eg:</p>
  
  <pre><code>connect(sender, SIGNAL(valueChanged(QString,QString)), this, SIGNAL(updateValue(QString,QString)));
  </code></pre>
  
  <p>I like using the <a href="http://qt-project.org/wiki/New_Signal_Slot_Syntax">new Qt5 syntax</a>. Is it possible to use the new syntax to forward a signal?</p>