Render the correct number of incomplete todos remaining.
Step: http://emberjs.com/guides/getting-started/displaying-the-number-of-incomplete-todos/
Render the correct number of incomplete todos remaining.
Step: http://emberjs.com/guides/getting-started/displaying-the-number-of-incomplete-todos/
Toggle editing state of todos on double click.
Step: http://emberjs.com/guides/getting-started/toggle-todo-editing-state/