pfSense

Properly detect valid trailing dots

Count dots, detect a trailing one and remove it for counting. Must have at least 2 dots.

Improved domain validation

Clean up test for CDATA tags and add common_name. Fixes #9006

Fix erroneous hostname error for Custom IPv6. Fixes #8977

Supersede the DHCP MTU when advanced options are present. Issue #8507

Prevent a reference error w/o rules in the config. Fixes #8993

ssh settings alignment. Fixes #8974

Remove redundant settings stored in the wrong place
Store all ssh settings in the same place
Initialize this array before use

Merge pull request #3986 from 9Lukas5/master

Merge pull request #3984 from luckman212/gwlb-log-spew

Added scheduled config backup
Fixed: #8947