Change comment author to structured data - #955

Destructured data is easier to use, and more consistent with the rest of the API

Destructured data is easier to use

I'm not sure exactly what you mean by "easier to use". There are contexts certainly where destructured data is easier to use; Backbone models are a good example of that (with model.get()). However, structured data is a lot easier to use in other contexts, such as Handlebars templates:

{{#with author}}
    <h2>By <a href="{{ url }}">{{ name }}</a></h2>
{{/with}}

I don't think there's a clear benefit to destructured data in that context.

and more consistent with the rest of the API

More consistent with what exactly? One advantage of having structured data for comment authors is that you can get a user-like object, which means you can share code for things like views.

Merged #955