(legacy) fix PHP Strict Standards:  Only variables should be passed by reference in /usr/local/etc/inc/util.inc on line 861

(legacy) add legacy_interface_details to interfaces.lib.inc, first step in replacing pfSense_get_interface_addresses

fix label for option Source/Invert

some work on #576

(legacy) fix sorting for firewall -> aliasses, use recursive html escape function on form data. closes https://github.com/opnsense/core/issues/573

bring back gateway descriptions

(legacy) crashreport PHP Warning:  Illegal string offset 'acls' in /usr/local/www/services_unbound_acls.php on line 59

(legacy) fix crashreport in_array() expects parameter 2 to be array, null given in /usr/local/www/system_groupmanager_addprivs.php on line 131

(legacy)  fix CARP support for OpenVPN client #569, add missing requires (https://github.com/opnsense/core/pull/569)

Fix ipsec page