Fancybox2

Hey @leggrease @jimivyas @m3rrick , I implemented fancybox2 to show the images in a lightbox popup. 

An interesting thing to note is the way fancybox2 groups images. It groups by the "rel" value so I set it as the following(story.title):

`````````````ruby
<div class="clickable_image">
	<%= link_to image_tag(page.page_photo_url(:medium)), page.page_photo_url(:medium), class: "fancybox", :rel => story.title, :title => page.caption %>
</div>
``````````````
Let me know if that makes sense or if I could refactor it any way!

Nathan