todo:
-* Unicast responses/queries
-* Known-Answer suppression
-* Truncation
* Probing/Conflict resolution
-* Legacy unicast
* uniqueness
+
* defend our entries on incoming goodbye
+* Unicast responses/queries
+* Legacy unicast
+
done:
* really send goodbye packets
-
+* refresh subscribed records only
+* FLX_DNS_TYPE_ANY support
+* Known-Answer suppression client part
+* Known-Answer suppression server part