Don't depend on user => person delagation so we can eventually get rid of that, thanks astronouth7303

Add spec for validation hook

A fix for the image breaking if you don't change anything on the edit profile page but hit update profile instead of cancel

Backfilled tests where necessary to make sure changes didn't break existing code.

Added "shadow text" to caption text field while editing a photo, since about every other text field has "shadow text".

This reverts commit 8c0bc4b9.