title: QList as a property in qt designer custom widget
body: <p>i have defined a custom widget, basically adding to QLabel. The simple (Qstring and enum ) properties are ok and appear in my QT designer.</p>
  
  <p>I am now trying to add a property which is a list.</p>
  
  <p>So I declare my property as :</p>
  
  <pre><code> Q_PROPERTY(QList&lt;int&gt; points READ getpoints )
  </code></pre>
  
  <p>and I have my private variable <code>QList&lt;int&gt; m_points;</code></p>
  
  <p>Still, I cannot see my points property in QT designer propriety editor. And, I don't know what went wrong.</p>
  
  <p>I've tried to add the DESIGNABLE flag but it does nothing.</p>
  
  <p>Any clue ? </p>