felixge/node-form-data — pull request #80 by papandreou (2014-08-20 13:26:46+00:00)
Title: append: Support chaining

I find it nicer to be able to go:

```javascript
var FormData = require('form-data'),
form = new FormData().append('foo', 'bar').append('baz', 'quux');
```

than

```
var FormData = require('form-data'),
form = new FormData();
form.append('foo', 'bar');
form.append('baz', 'quux');
```