title: In a webview, how do I know when an input should resignFirstResponder
body: <p>Portions of my app present users with forms via a webview. I've had a few users ask why after entering data into a field when they continue to scroll down the form/webview the keyboard remained visible on the screen. I cannot seem to find any textarea or textfield delegate method which would dismiss the keyboard.  </p>
  
  <p>I am apprehensive to start adding gesture recognizers because I don't want to override the touches on the webview.</p>