Add patch from 9.3.5 to 9.3.5-P1. This is for adding randomization

Add patch from 9.3.5 to 9.3.5-P1. This is for adding randomization
for every query.

The patch for the security issues from 9.3.5 to 9.3.5-P1 (minus
win32 and doc) applies fine to HEAD contrib/bind-9.3 (which is
9.3.4-P1) other than a few RCS ident conflicts.

I made up my own version name for this for DragonFly: 9.3.4-P2.

This is for
http://www.kb.cert.org/vuls/id/800113
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1447

Note that this -P1 patch is the unoptimized version.
Also on busy recursive caching systems you may need to set limits
to allow many sockets.

This also removes comment from DragonFly's named.conf as
that is now a "warning" and is not recommended. Remove any
query-source restriction for one port or this patch will not be used.