documentcloud/backbone — pull request #2650 by watilde (2013-07-03 06:45:54+00:00)
Title: Allow multiple callbacks per event

Current version cannot do the following (in a View)
```javascript
events: {
'click .button': 'foo',
'click .button': 'bar'
}
```
This is because the key cannot be duplicated.

---
This change allows the following
```javascript
events: {
'click .button': ['foo', 'bar']
}
```