Art Editor

:construction: :construction: :construction: :construction: :construction: :construction: :construction: WIP :construction: :construction: :construction: :construction: :construction: :construction: :construction: 

This is early, but I'm gonna push it up while I work on it.

This lets you edit the art for a rom right from inside Kart. It adds a new button to the game card that prompts a modal giving choices of art. I wrote a quick consolegrid.com scraper in Ruby and threw it up on Heroku so it had something simple to call out to as an API. It works pretty well. 

![edit-art](https://cloud.githubusercontent.com/assets/260/4066842/fb489108-2e27-11e4-850e-40fe90b51dd0.gif)


### To Do

- [ ] Add loading UI while the api request is still processing.
- [ ] Add credit to consolegrid.com in the modal, linking to them.
- [ ] Add form for adding art via a URL
- [ ] Clean up the modal to just look a little better
- [ ] Some error handling