fixed: ipc client running on synergyc wasn't sending hello message, and so wasn't getting shutdown message. edits to CIpcClient or CIpcTests weren't really needed, but looks slightly better this way maybe.

src/lib/synergy/CClientApp.cpp

@@ -528,13 +528,15 @@ CClientApp::mainLoop()
 
 	// create the event queue
 	CEventQueue eventQueue;
-	
-	if (argsBase().m_enableIpc) {
-		initIpcClient();
-	}
 
 	// start client, etc
 	appUtil().startNode();
+	
+	// init ipc client after node start, since create a new screen wipes out
+	// the event queue (the screen ctors call adoptBuffer).
+	if (argsBase().m_enableIpc) {
+		initIpcClient();
+	}
 
 	// load all available plugins.
 	ARCH->plugin().init(s_clientScreen->getEventTarget());