passing options to iterate command

Just a quick question, I used to be able to run the following:

`ember exam:iterate 3 --options '---split 24 --parallel --random'` but since upgrading to v0.6.2 I get the following error:

```
The option '--split 24 --parallel --random' is not registered with the exam:iterate command. Run `ember exam:iterate --help` for a list of supported options.
```

I just wanted to know if this was updated & what would be the correct way to pass these options to the iterate command.

Any help would be greatly appreciated.