v1.6.0-beta9

Added:

• Introduced rhilip/bencode to replace the self-contained inefficient bencode codec function.
• Award bonus at torrent details page.
• IP address shows it's location (to the exact country or city).
• Google Authenticator.
• Exam filter adds whether donated or not.
• Exam can be avoided.

Changed:

• Torrent download also supports downhash and passkey.
• Attendance from daily flow to only the latest day.
• Exam progress update mechanism (no user perception).
• Data table structure and changes replaced with migration file, data filling replaced with seeder file.

Fixed

• Invalid rss download link.
• Admin password change overridden.
• Mybar.php, takemessage.php ,viewrequests.php undefined constants error under php8.

Chinese version: https://nexusphp.org/2021/06/14/nexusphp-v1-6-0-beta9/

This version is faulty, don't use it!
这个版本有问题，不要使用！