Commit 11.4: Add private class to private tasks.

simple-todos.html

@@ -34,7 +34,7 @@
 
 <!-- Custom "task" template -->
 <template name="task">
-  <li class="{{#if checked}}checked{{/if}}">
+  <li class="{{#if checked}}checked{{/if}} {{#if private}}private{{/if}}">
     <button class="delete">&times;</button>
     <input type="checkbox" checked="{{checked}}" class="toggle-checked" />