pfSense

Resolves #2330. Check if there is a previous voucher config before wiping

Show delegated prefixes on the DHCPv6 Leases display.

Feature #1864 "Start" button for IPsec should be available for IP alias networks

might need more testing.

http://redmine.pfsense.org/issues/1864

Increase Prefix delegation size choices

Clarify text

Do not throw a address family error when there is just 1 gateway.
Fix the input logic for ticket #1662

Feature #2123 Backup RRD files using the xml dump and restore from RRD tools

http://redmine.pfsense.org/issues/2123

Fix tag order.

Fixed IPv4 regression. Handles addresses with and without port.

Remove [] of literal IPv6 addresses