title: Add/remove items from Copy/Paste popover in UIWebView
body: <p>When we highlight a text in UIWebView usually the copy, paste, define.. etc appears. How can I intercept this so that when I choose copy I call some other method/do something else. Is this possible?</p>
  
  <p>When text is highlighted in a webview, a popover copy/paste/etc... shows up. Is there any way to customize this popover with other buttons or use my own custom view instead? I want to add options for changing text color, highlighting, etc.</p>