Added EffectOutline control

One thing I found when implementing editing for CCEffectLighting was that NSColors from the color chooser aren't always in the RGB color space. This would cause [NSColor getRed: green: blue: alpha:] to throw an exception. I fixed this by adding the following line:

```
NSColor *rgbColor = [inputColor colorUsingColorSpace:[NSColorSpace deviceRGBColorSpace]];
```
And then I retrieve the RGBA components from rgbColor instead of inputColor.