del and deleteFile not actually deleting

Using the following:

```
var s3 = knox.createClient({
secure: true,
bucket: 'xxxx',
key: 'xxxx',
secret: 'xxxx'
});

s3.deleteFile('/249817_10150251832903474_4763491_n.1409099878932.jpg', function(err, res){
console.log(err);
});
```

I receive no error (null), however when I access the full URL, the image is still available. Any idea why its not be deleting the file from s3?

No repository file or test is named. Start at the deleteFile entry point, reproduce the shown JavaScript call against the S3 object, and inspect the callback response and object state. Done means identifying why the image remains available and documenting or verifying the expected deletion behavior.

Written by the indexing model from the issue text.