sclang: terminate udp input thread on quit

Signed-off-by: Tim Blechmann <tim@klingt.org>
sclang: detach resynch thread on shutdown

avoids assertion failure. it really should be terminated properly!

Signed-off-by: Tim Blechmann <tim@klingt.org>
nova-tt compile fix

Signed-off-by: Tim Blechmann <tim@klingt.org>