Merge branch '1.8'

Bugfix: Missing module authorization checks

Merge branch '1.7'

Bugfix: PDNS PHP8 compatibility cleanup. Fixes #4337

Bugfix: Fix mac selected_ip_fields

Bugfix: XSS - reflected via HTTP_X_FORWARDED_PORT

Reported by @M0ck3d

Bugfix: PHP8 compatibility fixes.

Bugfix: LDAP user searches sent without ssl/tls

Version bump v1.6.1

Update .gitsubmodules