Refactor document views specs

https://www.pivotaltracker.com/story/show/73291456
Summary of changes: https://docs.google.com/document/d/13TNmNkD6__d-7TbnvkNUV8yvCY8bc_SGa6ewxewrciE/edit?usp=sharing
Since the old behaviour now requires a deliberate opt-in, it appears that going forward RSpec is moving away from automatic inference and may drop support for it completely in the future, no?