title: touchesBegan not being called over a UIbutton
body: <p>The touchBegan method is not being called over my UIButton. I want both the UIButton and the touchesBegan method to share the touch. Is that possible? 
  Right now when I click the button, only the button method is being called and it seems to "override" the touches method.</p>
  
  <pre><code>- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
   // not called over button
  }
  </code></pre>
  
  <p>How would you enable both methods?</p>