title: pass scroll event from uibutton to uiscrollview
body: <p>i have horizontal <code>UIScrollView</code> which is extended from <code>UIScrollView</code> and i added <code>UIButtons</code> horizontally. i can only scroll out of the buttons area, but if i want to scroll over any buttons is fires <code>UIControlEventTouchUpInside</code> event. I don't want this. i want to fire <code>UIControlEventTouchUpInside</code> action if i click and i want to scroll if i scroll.</p>
  
  <p>so how can i pass scroll event from <code>UIButton</code> to <code>UIScrollView</code>?</p>