Remove unused.
Internal: Refactor load_by_query a bit.

Just pass in the where-clause.
Minor refactor.
PaperInfo: Support has_tag().
Function never called with null prow
Get rid of global $forceShow variable.

Cleaner, better.
Get rid of global $rf as well.
Remove $linkExtra global.

Instead, assign forceShow= and ls= arguments in hoturl()
when it makes sense given the destination.
Avoid warnings in contact author display.
Paper administrators can act as administrators re: reviews.

I.e., can delete, unsubmit, etc.
Contact::is_discussion_lead follows existing naming convention.
Save settings as actual integers.

Better to cast this early to avoid surprises later, I think.
Remove unused function.
Great Rights Rewrite.

The eventual purpose of this code is to make it easier or possible
to introduce PC tracks. Tracks, like managers, mean that "PC-ness"
is a per-paper trait. So start avoiding checking "PC-ness" in a
contact-wide manner.
Review table: Use per-paper PC-ness; inform chair about un-overridable conflicts.
Update copyright year.
Simplify permission-required redirections.