Since updating to *ember@2.2.0* 

```
const config = this.container.lookupFactory('config:environment');` 

```

no longer works. I can't use:

```
import ENV from 'your-application-name/config/environment'; 

```

because I don't actually know what the application-name is as I am using this in an addon and also some blueprints.

What is the alternative?