pfSense

Correctly report unmonitored gateway status

If an alternate monitor IP has been entered and saved, then the user
checks "Disable Gateway Monitoring" and saves, the alternate monitor IP
is retained in the config - that is handy for when unchecking "Disable...

Fix label for consistency.

Merge pull request #3351 from phil-davis/patch-2

vpn_openvpn_client comment typo

Same stuff was copied here

Correct the method used for input validation of NTP Orphan mode. Fixes #7034

vpn_openvpn_server comment typo

Fix up OpenVPN CSC page help text, add IPv6 tunnel network. Fixes #7053

Fix a probably copy/paste error

As done on OpenVPN Server, delete tunnel when dev_mode changes so new device is created accordingly

Fix conditional to work as expected when $id == 0