Crop and photo bugfixes

Fixes two small layout bugs (both probably caused by the b3 upgrade, in some way or other):

https://www.pivotaltracker.com/story/show/78175444
https://www.pivotaltracker.com/story/show/78175754
Would it make send to use any of these 3 options here:
1. `unless crop.photos.empty?`
2. `if crop.photos.any?`
3. `if crop.photos.present?`