Wiki Part 2!

#### What's changed?

* Cleans up the review page w/ diffs
    ![](http://cl.ly/image/232Z0t3q1r2i/Image%202014-11-15%20at%205.48.28%20pm.png)
* Updated edit modal to fit more data
    ![](http://f.cl.ly/items/1N2j3T1x00130t1o2k42/Image%202014-11-15%20at%207.08.52%20pm.png)
* Allows users to add/edit YouTube trailers
Well I added it here as I assumed the wiki would extend to Manga pages too, I just didn't add it to the serializer as I haven't added support yet.

I can move it to `HB.Anime` until I add manga, if you want?