- qname minimization:

- make qname-minimization option tristate {strict,relaxed,disabled}
 - go straight for the record if we hit NXDOMAIN in relaxed mode
 - go straight for the record after 3 labels without new delegation or 7 labels total

- use start of fetch (and not time of response) as 'now' time for querying cache for
  zonecut when following delegation.

bin/named/config.c

@@ -185,8 +185,7 @@ options {\n\
 	provide-ixfr true;\n\
 	query-source address *;\n\
 	query-source-v6 address *;\n\
-	qname-minimization no;\n\
-	qname-minimization-strict no;\n\
+	qname-minimization relaxed;\n\
 	recursion true;\n\
 	request-expire true;\n\
 	request-ixfr true;\n\