title: ScrollView allows dragging content. How can this be disabled?
body: <p>The content of a QML <code>ScrollView</code> can be dragged using the mouse or touch gestures. The same is true for the content of <code>ListView</code>s, at least in the example I have. 
  And it is even possible to do so when the content fits into the <code>ScrollView</code> and no scrollbars are displayed. In this case, after releasing the mouse button, the content item moves back to it's original place. Is there any way to disable this?</p>