Using custom Page Walker.

I was inspired by this feature request http://wordpress.org/support/topic/one-key-feature-needed?replies=1#post-5416070 to add a custom Page Walker. Please have a look.

![display-widgets-02](https://cloud.githubusercontent.com/assets/3716267/2657169/9621ad06-bff9-11e3-8739-018c06f063d4.png)