Add all icons to folder and project
Reorganize the model -- make 'Thing' entity a super of 'Item' and 'Box'
Improve 'New Item' tab order
Allow taking or choosing a picture for a New Item
Add BlocksKit pod
Confirm clearing of picture
Disable image view tap until there's an image, color disabled camera/photo options
Add safeties to taking or choosing a picture (if unavailable)
Correctly implement second sorting option ("By Name")
Add TestFlight lib and code (2 lines) to AppDelegate