* really send goodbye packets
* refresh subscribed records only
* FLX_DNS_TYPE_ANY support
* Known-Answer suppression client part
* Known-Answer suppression server part
* make flx_server_add_text() and flx_server_add_service() variadic functions
* really send goodbye packets
* refresh subscribed records only
* FLX_DNS_TYPE_ANY support
* Known-Answer suppression client part
* Known-Answer suppression server part
* make flx_server_add_text() and flx_server_add_service() variadic functions