Bump Terminate timeout, a really big experiment can take too

long and the RPC will timeout. This is actually harmless, since
the termination at the cluster eventually finishes and we will
notice that from the daemon.

apt/APT_Instance.pm.in

@@ -1650,6 +1650,9 @@ sub Terminate($)
 	if (! (defined($geniuser) && defined($authority) &&
 	       defined($slice) && defined($context)));
 
+    # Bump default timeout, this can take a while for a response
+    Genixmlrpc->SetTimeout(900);
+
     # We might change this below.
     my $cmurl = $authority->url();