title: Convert urls to clickable links - domain.com/foo/bar
body: <p>I have a string that contains some links. I need them converted to clickable links, but the issue is that a lot of these don't start with http or www. How can I convert them without inadvertently affecting the rest of the string?</p>
  
  <p>Sample String: <a href="http://pastebin.com/bMe9pGbv" rel="nofollow">http://pastebin.com/bMe9pGbv</a></p>