build source files

 - fix builder for Core and More

I don't think we need to add this yet. Or if you do, you'll have to update the `./core/index.js` to include: 

``` js


	app.get('/core/:version/builder', function(req, res){
		res.render('builder/index', {
			title: 'MooTools Core Builder',
			navigation: 'core',
			page: 'builder',
			project: 'Core',
			version: req.params.version || lastVersion,
			dependencies: require('../builder/dependencies.js')(project, lastVersion)
		});
	});
```

But then you'd have to update the interface on the builder to allow you to change the version (links).

We can simplify the code by only have the latest version. We'd then could compile static sourcePaths (outside the closure) simplifying: L35-54 of `builder/index.js`