implement landmark-demo reset button

(doesn't work yet, no API behind it)

Author: gschmidt

examples/landmark-demo/client/landmark-demo.js

@@ -70,10 +70,9 @@ Template.stateDemo.timers = function () {
 };
 
 Template.timer.events = {
-  'click .reset': function () {
-    // XXX need to get the template state object
-    // XXX also probably need to have the landmark available..
-    Timers.remove(this._id);
+  'click .reset': function (event, template) {
+    template.data.elapsed = 0;
+    template.data.update();
   },
   'click .delete': function () {
     Timers.remove(this._id);