title: Move items from one QListWidget to another
body: <p>I have to QListWidgets, one source list, one destiny list and one button. Whenever the button is clicked, I want the selected item(s) from the source list to be removed and inserted into the destiny list. I tried to <code>source_list.removeWidgetItem(aSelectedItem)</code> but that does not even do a thing. :( What am I doing wrong? Do I need to update the list afterwards somehow? </p>