update sample node to reflect better way to close nodes.

nodes/99-sample.html.demo

@@ -17,6 +17,8 @@
 <!-- Sample html file that corresponds to the 99-sample.js file              -->
 <!-- This creates and configures the onscreen elements of the node           -->
 
+<!-- If you use this as a template, replace IBM Corp. with your own name.    -->
+
 <!-- First, the content of the edit dialog is defined.                       -->
 
 <script type="text/x-red" data-template-name="sample">
@@ -38,7 +40,6 @@
         <label for="node-input-name"><i class="icon-tag"></i> Name</label>
         <input type="text" id="node-input-name" placeholder="Name">
     </div>
-
 </script>
 
 

nodes/99-sample.js.demo

@@ -14,6 +14,8 @@
  * limitations under the License.
  **/
 
+// If you use this as a template, replace IBM Corp. with your own name.
+
 // Sample Node-RED node file
 
 // Require main module
@@ -32,20 +34,19 @@ function SampleNode(n) {
     // this message once at startup...
     // Look at other real nodes for some better ideas of what to do....
     var msg = {};
-    msg.topic = node.topic;
+    msg.topic = this.topic;
     msg.payload = "Hello world !"
 
     // send out the message to the rest of the workspace.
     this.send(msg);
+
+    this.on("close", function() {
+		// Called when the node is shutdown - eg on redeploy.
+		// Allows ports to be closed, connections dropped etc.
+		// eg: this.client.disconnect();
+	});
 }
 
 // Register the node by name. This must be called before overriding any of the
 // Node functions.
 RED.nodes.registerType("sample",SampleNode);
-
-
-SampleNode.prototype.close = function() {
-    // Called when the node is shutdown - eg on redeploy.
-    // Allows ports to be closed, connections dropped etc.
-    // eg: this.client.disconnect();
-}