title: Double callbacks onMenuOpened/onPanelClosed on each menu button press
body: <p>In my Android app I want to collect statistics on when (how often) the overflow (three dots) action bar menu is opened and closed (without an item being selected). For this task I have overriden <code>onMenuOpened</code> and <code>onPanelClosed</code> methods within an <code>Activity</code>. However, on all the devices (Android 4.4, 4.2; Samsung and HTC) I've tried  this so far these methods are triggered twice, each time the menu is opened and closed.
  Is this a bug? Is there another way to monitor this menu opening and closing?</p>