This extends our email address visibility settings to deny access to
user email addresses even to organization administrators.
At the moment, they can of course change the setting (which leaves an
audit trail), but in the future only organization owners will be able
to change that setting.
While we're at this, we rewrite the settings_data.js test to cover all
the cases in a more consistent way.
Fixes#14111.
That we are working to fix the caveats is implied by the (beta) label.
More generally, for /help articles, explanations, apologies, etc can go in a
section at the top, but the rest of the text should be a straightforward
description of the current state.
Tim Abbott
Rishi Gupta