[Zurich] Fix url for admin problem-row photos
[Zurich] Fix photo thumbnail on admin report_edit

Because the report has not yet been published, the image isn't public,
so we have to use the .temp.jpeg form of the url.
Add fullsize photo to Photo controller

This is used in the Zurich admin to view a full size version of the
image before it has been made public.
[Zurich] Use full-size version of photo in admin
[Zurich] Always render fancybox css/js

This is so the admin can still display photos in a fancybox when the
photo has not yet been published.