We have a renderedInline attribute on both the AbstractReviewable model

and AbstractReviewableView JS objects for our review UIs. This

attribute says whether the review UI is being rendered inline or not. We

were properly setting this on AbstractReviewableView, however we

weren't setting it on AbstractReviewable. This change fixes that.
We also add a ReviewUI._inline attribute that gets set along with

the request attribute. This way any method on the review UI can

access the inline information.

Confirmed that the attribute is set on the AbstractReviewable,

  viewed an inline review UI and a standalone one.
Confirmed that the attribute is still properly set on

AbstractReviewableView.
Ran unit tests.