segmentio/facade — pull request #71 by yields (2014-11-05 16:25:47+00:00)
Title: options: support legacy options

if we get a message like:

```js
var context = {
providers: {
'Salesforce': true
},
'Salesforce': {
object: 'Lead',
lookup: { email: 'peter@initech.com' } }
}
};

msg = new Facade({ context: context });
```

options method doesn't work properly:
```js
msg.options('Salesforce'); // => {}
```

cc @calvinfo