title: OpenFileDialog: opening directories
body: <p>I'd like to be able to select directories (in addition to single files) in the dialog. As it is now, when I click 'open' when the directory is selected, it descends into the directory, while I want it to return the path to the directory.</p>
  
  <p>Additionally, how would I read such path? I don't see any property that would return the full path.</p>