Implement this.super method call


```objectivec
id self = [super initWithSize:size]
```

goes to

```javascript
Hyperloop.defineClass(RyuScene)
	.implements('SKScene')
	.method(
	{
		name: 'initWithSize',
		returns: 'id',
		arguments: [ { type: 'CGSize', name: 'size' } ],
		action: function(size) {
			var self = this.super.initWithSize(size);
			return self;
		}
	})
	.build();
```