Added Roofpig JavaScript applets for 3x3 solves. 

Style however you want. Right now it's included in solve_links.erb but if you prefer i could give it its own view and then figure out a better place to put it. 
![screen shot 2014-07-03 at 12 02 12 pm](https://cloud.githubusercontent.com/assets/2791709/3474490/90364658-02e4-11e4-8d9b-634941ab4c29.png)