+30 November 2017: Wouter
+ - Fix #3299 - forward CNAME daisy chain is not working
+
14 November 2017: Wouter
- Fix #2882: Unbound behaviour changes (wrong) when domain-insecure is
set for stub zone. It no longer searches for DNSSEC information.
those servers are not authority servers, but are (just like unbound is)
recursive servers too; unbound does not perform recursion itself for the
forward zone, it lets the remote server do it. Class IN is assumed.
+CNAMEs are chased by unbound itself, asking the remote server for every
+name in the indirection chain, to protect the local cache from illegal
+indirect referenced items.
A forward\-zone entry with name "." and a forward\-addr target will
forward all queries to that other server (unless it can answer from
the cache).