DNSServiceResolve produces errors with avahi

Created by: stephanemagnenat

On Linux with Avahi, the studio connection dialogue box triggers an error (-65537 kDNSServiceErr_Unknown) in the call to DNSServiceResolve at line 171 of zeroconf.cpp. As the generated exception is not handled, the program terminates.

Note that it happens when Zeroconf::browse() is called every second. It might be interesting to see if the error happens when it is called less often.