pfSense

Make sure to push elements we don't recognize on the stack too.

Add upgrade code that updates the dynamic gateway names to their new format new $if_$type.
Redmine Ticket #2332. I've tested a simple upgrade with 3 dynamic Wans with varying names and that appears to have succeeded. Needs more testing.

Add the correct fix to pick up the IPv6 gateway for slaac interfaces

Make sure that SLAAC gateways show up in return_gateways_array();
redmine ticket #1834

Add support for SLAAC on the WAN interface, this is required for Stateless autoconf addressing.
Normally this should only apply to Appliances that do not need to route. We automatically hook in the dhcp6 client to request name servers from DHCP6 in a information only mode. It will not attempt to request a address. For that you should use the plain DHCP6 option with a prefix size of none....

Handle multiple IPv6 DNS servers in rc.newwanipv6, remove chunk of broken code in the DHCPv6 server that added duplicate lines. Redmine ticket #2380

Include the ntp facility also, should fix ntp logging

Strip the ::1 from the 6to4 gateway address

Prevent a invalid argument on a empty array

Only add the IPv4 gateway in the DHCPv4 config if we have a IPv4 gateway defined on the system at all.
This makes clients trying the IPv4 transport fail a lot faster, and thus more graceful.