Allow for optionValuePath to relate to the model

[ChrisHonniball]

per @igorpreston's request.

[ChrisHonniball]

Original request:

@ChrisHonniball Thank you very much! Your advice helped me and now ember-chosen displays the list.

Can you please also suggest how should I get the tag record itself and not id in optionValuePath? Because I would need to pass tag record itself to the controller action to setup relationship between post and tag when persisting data to the api?

{{ember-chosen
    content=tags
    optionValuePath="id" <= get tag model record instead of tag id
}}