for 0.6:
-* remove outgoing queries from queue if the browse object they were issued from is destroyed
* add API to allow user to tell the server that some service is not reachable
* pass *all* Bonjour conformance tests
* Add static host configuration like static services [lathiat]
* add support for defining browsing domains with an option in avahi-daemon.onf
* return an error when the user tries to register a service in a domain != .local, for now
* introduce AVAHI_CLIENT_FAILURE
+* remove outgoing queries from queue if the browse object they were issued from is destroyed