Add cached IP support to RFC2136, add GUI button to force update for single host.
Fix double click row to edit for rfc2136
Add option to RFC2136 to find/use the public IP if the interface IP is private. (Off by default)
Add server IP column and cached IP display to RFC2136 host list.
Include RFC2136 hosts in DNS rebinding checks.
Include both dyndns and rfc2136 hosts in referer check