- new function in WINGs: WMSetConnectionShutdownOnClose()

- new callback in the ConnectionDelegate structure: canResumeSending
- replaced setpgid() with setsid() when starting kids, to allow them to
  survive if wmaker (the parent) dies.
- a few cleanups.

WINGs/Examples/connect.c

@@ -28,6 +28,7 @@ static void didInitialize(ConnectionDelegate *self, WMConnection *cPtr);
 
 static ConnectionDelegate socketDelegate = {
     NULL,              /* data */
+    NULL,              /* canResumeSending */
     NULL,              /* didCatchException */
     connectionDidDie,  /* didDie */
     didInitialize,     /* didInitialize */