rev.83

1. Up min PHP version to 7.0.
2. Add support PHP 8.1.
3. Fix search for PHP 8.0.
4. Parser fix for the situation when the [code] tag was placed inside other tags.
5. Fix [email] tag (can break page markup).
6. Add emoji-autocomplete mod.
7. Upload Mod v3.2.0.
8. Media.js v2.4.0.
9. Change user_agent mod.
10. Other changes and fixes (read commits).