* 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
* 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