Only show add to collection button when logged in
Set Clear Limits button to return user to /catalog
Adjusts collection view page for the primary use of creator rather than contributor.
Remove "A PDF is preferred" from datasets and generic works forms

Articles and documents inherit from generic works.  So I had to include
partials for articles and documents even though they did not change.
Temporarily disable some tests while registrations are disabled
Temporarily turn off new account registrations