Update accumu nameservers

Update accumu nameservers

< maswan>  Hm. Praetorious and possibly Pettersson might be affected too.
           Forgot about those. We are migrating resolver away from 130.239.18.145
	   at acc, and just saw a denied query from praetorious. If you want to
	   query local resolvers at ACC, {130.239.18.,2001:6b0:e:2018::}{251,252}
	   is the current set
< aurel32> maswan: what about 130.239.1.90 and 130.239.4.100?
< maswan>  aurel32: those should be available for all of campus (/16), so they
           should work

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>