title: jQuery prevUntil() include start selector and end selector
body: <p>I would like to select the start and end selector for the prevUntil() or nextUntil() jQuery selector methods. If I implement these methods now, it grabs everything between the two selectors given.</p>
  
  <p>i.e. <code>$('p').prevUntil('h1')</code> will not include the p and h1 element, only those between them. How could I also select the p and h1 elements as well as though between?</p>