Replace ColorChooser PApplets with custom Swing components

You may want to take a closer look at the color value calculations, but it seems to work good as far as I tested.

![captura de pantalla 2014-11-20 a las 1 17 08](https://cloud.githubusercontent.com/assets/138426/5119606/f9ec4fda-7052-11e4-9c83-b5554443149b.png)