loadStylesheet is not a function

Simple use case 
```
data: {
        css: {
          home: 'stylesheets/page/style.css'
        }
      }
```

```
Transition Rejection($id: 1 type: 6, message: The transition errored, detail: TypeError: b.loadStylesheet is not a function)

TypeError: b.loadStylesheet is not a function
    at i (angular-ui-router-css.min.js:formatted:45)
```

`Version: 0.1.0 - 2017-05-30`