Upgraded to support BS3 only

I removed the wrapping div tag as that is something that anyone can add themselves in their own templating system. I moved the pagination class to the same element as the wraptag as in BS3 the required markup is:

```<ul class="pagination">
  <li><a href="#">&laquo;</a></li>
  <li><a href="#">1</a></li>
  <li><a href="#">2</a></li>
  <li><a href="#">3</a></li>
  <li><a href="#">4</a></li>
  <li><a href="#">5</a></li>
  <li><a href="#">&raquo;</a></li>
</ul>```