Bring back parts of f9e71141 in order to do an autoremove on
minor operations.  We still don't want the cleanup, but at
least since we have migrated to the vital flag we can be
sure that our GUI is not being purged.

move local auth functions to abstract base, add groupAllowed(). requirement for https://github.com/opnsense/core/issues/1377

openvpn export, advancedoptions shouldn't be escaped https://forum.opnsense.org/index.php?topic=4427.msg16748#msg16748

Non-transparent SSL Bumping

Merge branch 'eap-radius/2-try' of https://github.com/GurliGebis/opnsense_core into GurliGebis-eap-radius/2-try

dhcrelay: change the description and help text to make it clear multiple servers are supported (#1360)

* dhcrelay: change the description and help text to make it clear multiple servers are supported

* dhcrelay: minor spelling errors

isset() vs !empty(), when the legacy code stores false.... it eventually translates into a missing entry after save, before save, it's set with false....

UIModelGrid: use empty string instead of "##Unlinked"

We import those users with a random password.  We can always let
the user define another one and use it...