Add missing model to template render.
Add missing model to template render.

Closes #3530, Refs #3474
- Cleanup from #3474 which stopped passing the model into
  the render template call.

dbalders/Ghost-Admin,acburdine/Ghost-Admin,acburdine/Ghost-Admin,TryGhost/Ghost-Admin,kevinansfield/Ghost-Admin,airycanon/Ghost-Admin,kevinansfield/Ghost-Admin,airycanon/Ghost-Admin,JohnONolan/Ghost-Admin,dbalders/Ghost-Admin,TryGhost/Ghost-Admin,JohnONolan/Ghost-Admin