Feature/417 featured ui improvements

Goes with issues 417.

Basically made a sprite of the stars. Switched up the PHP so that we determine the $class and $title of the link before and then apply it to the link. That allows us to sprite it.

Someone should definitely check my translation, haven't had to deal with it before so I think I'm using the right function but...

I did not sprite the black star at the top of the column because after looking at the code I just thought it was a pushing the sprite technique past a point that I usually consider reasonable. The dark star is included in the sprite though and used for an :active state. Didn't seem to me like the user really had any feedback that a click action had happened.