add main() as required by golang

Signed-off-by: Jeff Carr <jcarr@wit.com>

action.go

@@ -79,9 +79,12 @@ func doAction(a widget.Action) {
 		n.State.Pad = false
 	case widget.Delete:
 		log.Warn("doAction() TODO: Delete()")
-		// n.Delete()
+		n.DeleteNode()
 	case widget.Move:
 		log.Warn("doAction() TODO: Move()")
+	case widget.ToolkitClose:
+		log.Warn("doAction() toolkit closed. are the channels cleand up?")
+		return
 	default:
 		log.Log(ERROR, "doAction() Unknown =", a.ActionType, a.WidgetType)
 	}

main.go

@@ -19,6 +19,9 @@ func init() {
 	me.myTree.PluginName = "nocui"
 	me.myTree.ActionFromChannel = doAction
 
-	go simpleStdin()
 	log.Log(INFO, "Init() END")
 }
+
+func main() {
+	simpleStdin()
+}

stdin.go

@@ -20,6 +20,7 @@ func simpleStdin() {
 			log.Println("Stack trace:")
 			debug.PrintStack()
 			me.myTree.DoToolkitPanic()
+			return
 		}
 	}()
 	scanner := bufio.NewScanner(os.Stdin)