title: JavaFX set listview to be editable
body: <p>I am kinda new to JavaFX, so maybe this is very easy to do. I have a <code>ListView&lt;String&gt;</code>, and what I want is that I can have a button which when pressed,  basically turns the selected String into a sort of text field in which you can edit the name of that specific item. I hope it is clear what I want. I already tried <code>list.setEditable(true)</code>, but that didn't change anything.</p>