Fix bug where authors sometimes didn't appear.
Correct sense of author check.

Now authors can actually search for au:.
Search: Author/collaborator search obeys paper-manager rules.

And change canViewAuthors to follow calling convention of other policy
checkers.
Search: Decision search obeys paper-manager rules.
Search: Conflict search obeys manager stuff.
Search: Option search obeys manager stuff.
Search: Topics obey manager stuff.
Nits.