title: How to change the Option menu icon in the Action Bar?
body: <p>On Honeycomb, when the options are hidden (not ifRoom), they are displayed in a Spinner in an option menu.
  I simply would like to know how to change the icon of this option menu (furthest to the right).
  By default, the icon is just three lines and 3 dots on ICS.</p>
  
  <p>Thanks !</p>