pfSense

Bump latest_config version that I forgot on previous commit. Spotted by Jim Pingle

syslogd can't just be HUPed to pick up its new config, as many of those
are command line arguments. Go back to 2.1x and prior behavior of TERM and
restart. Fixes source IP use with syslog among other config changes.

Add a cron item to expire items from webConfiguratorlockout, also add config upgrade code. This fixes #4122

Check if interface is disabled when configuring DHCP server. It fixes #4119

Give the proper value for the logging level since even 0 is the correct value coming from GUI.

Make logic more visible as suggested by Ermal

Teach interface_vip_bring_down() to deal with IP Alias over CARP

Use newline to separate unbound custom options during config upgrade, it should fix #4104

Where binding Unbound to *:53, set "interface-automatic: yes" so replies are sourced from the correct IP. Ideally this should always work this way, but setting this causes Unbound to bind to *:53, which shouldn't happen where specific interfaces are chosen. Ticket #4111

Split ICMP and ICMPv6 types on Firewall Rules

- Remove redundant declaration of $icmptypes and move it to a common
place (filter.inc)
- Add missing ICMP types for v4
- Add ICMPv6 types
- Adjust javascripts to show correct options depending of IP Protocol...