Issue #19287 Tweak login/scope pages to include a message.
Issue #19285 Change session.passport to put everything under user property and add id.
Issue #19135 cleanup old examples to remove unused parts.
Issue #19287 Update socket.io, and add connect-flash to support login error messages.
Issue #19285 Cleanup session store and change some error returns.
Issue #19285 Add new session store logic and lots of cleanup.