Problem with indentation of Promises

I'm using Promises and usually put the `.then()` and the `.catch()` in different lines than the invocation of the method returning the Promise. But the plugin is not indenting it correctly.

It should be:
```
this.aService.getAll()
  .then()
  .catch()
```

But actually it is:
```
this.aService.getAll()
.then()
.catch()
```

Thanks for the awesome plugin.