+* name compression
+* remove expression "rrset" from source files
+* defend our entries on incoming goodbye
+* allow NULL bytes in TXT records
+* add flx_server_add_service_strlst() and friends
+* change flx_* to avahi_*
+* Unicast responses/queries
+* Legacy unicast
+* no flush bit in known answer
+* always set AA
+* check: TC bit is valid for queries ONLY