patch 7.4.1263
Problem:    ch_open() hangs when the server isn't running.
Solution:   Add a timeout. Use a dict to pass arguments. (Yasuhiro Matsumoto)
diff --git a/src/netbeans.c b/src/netbeans.c
index 6f3c4e1..c25b7c6 100644
--- a/src/netbeans.c
+++ b/src/netbeans.c
@@ -213,7 +213,7 @@
     if (hostname != NULL && address != NULL && password != NULL)
     {
 	port = atoi(address);
-	nb_channel_idx = channel_open(hostname, port, nb_channel_closed);
+	nb_channel_idx = channel_open(hostname, port, 0, nb_channel_closed);
 	if (nb_channel_idx >= 0)
 	{
 	    /* success */