Floby/node-libspotify — pull request #27 by swissmanu (2013-09-23 06:39:26+00:00)
Title: implemented album cover retrieving, now with more nodejs style api

as discussed before in #24, heres an optimized version of the implemenation to fetch cover images for an album. the callback has now a nodejs style signature:

```javascript
album.smallCoverImage(function(error, buffer) {
if(!error) {
console.log('we have an image!');
} else {
console.log('nay :(', error);
}
});
```

glad if you decide to merge :)