Installed NESS 4.1.9

Installed NESS 4.1.9.  Tweaked main city.  Full compile.

_module/nss/spawn_smpl_onext.nss

@@ -0,0 +1,17 @@
+//
+// NESS V8.1
+//
+// Spawn sample onExit
+//
+// If you want to use pseudo-heartbeats and do not already have an area onExit
+// script, you can use this one.  Otherwise, just add Spawn_OnAreaExit() to
+// your existing onExit handler.  Note that you use this (and
+// SpawnOnAreaEnter()) INSTEAD OF Spawn() / spawn_sample_hb.
+//
+
+#include "spawn_functions"
+
+void main()
+{
+    Spawn_OnAreaExit();
+}