pop menu when cancel the footstep and support resuming from joystick

* pop menu when cancel from joy stick.
* support resuming foot step
* changing the successors are not supported yet.


![screenshot_from_2014-07-19 23 05 48](https://cloud.githubusercontent.com/assets/40454/3634886/eebcadda-0f4f-11e4-8189-721949c1345a.png)