If the folder doesn't exists we can't loop it
Use dev-master until 2.3 is released
Replaced SpoonFile::setContent with the Symfony equivalent.

As you will notice this is Symfony 2.3, so we can't release/merge this branch
untill Symfony released 2.3, which will be end May.

 Before:
	```
	SpoonFile::setContent(...)
	```

 After:
	```
	use Symfony\Component\Filesystem\Filesystem;
    use Symfony\Component\Filesystem\Exception\IOException;
	...
	$fs = new Filesystem();
	$fs->dumpFile(...)
	```