Update root zone hints, prompted by d.root-servers.net address change.

Data pulled from http://www.iana.org/domains/root/servers. (The new IPv4 address
for d.root-servers.net is based on the UMD announcement to the NANOG list; it
won't show up on the root servers or IANA lists for a couple of weeks, although
the server is now live at the new address.)

Reference: /n/sources/patch/applied/dns-root-2012-12-update
Date: Sat Dec 15 01:51:15 CET 2012
Signed-off-by: lyndon@orthanc.ca

--- /lib/ndb/common	Sat Dec 15 00:47:24 2012
+++ /lib/ndb/common	Sat Dec 15 00:47:19 2012
@@ -6,20 +6,21 @@
 # real dns root server ips
 #
 dom=a.root-servers.net ip=198.41.0.4
-dom=b.root-servers.net ip=128.9.0.107
+dom=b.root-servers.net ip=192.228.79.201
 dom=c.root-servers.net ip=192.33.4.12
-dom=d.root-servers.net ip=128.8.10.90
+dom=d.root-servers.net ip=199.7.91.13
 dom=e.root-servers.net ip=192.203.230.10
 dom=f.root-servers.net ip=192.5.5.241
 dom=g.root-servers.net ip=192.112.36.4
 dom=h.root-servers.net ip=128.63.2.53
 dom=i.root-servers.net ip=192.36.148.17
-dom=j.root-servers.net ip=198.41.0.10
+dom=j.root-servers.net ip=192.58.128.30
 dom=k.root-servers.net ip=193.0.14.129
 dom=l.root-servers.net ip=199.7.83.42		# nov 2007
 dom=m.root-servers.net ip=202.12.27.33
 
 # dom=a.root-servers.net ipv6=2001:503:ba3e::2:30
+# dom=d.root-servers.net ipv6=2001:500:2d::d
 # dom=f.root-servers.net ipv6=2001:500:2f::f
 # dom=h.root-servers.net ipv6=2001:500:1::803f:235
 # dom=i.root-servers.net ipv6=2001:7fe::53