Adding a moves counter internally, displaying total moves after Game Over

As suggested by @warmwaffles, there is no need for a total moves counter in the UI.
That's why I added it so the moves count will only be displayed after you lose or win the game.
![screenshot from 2014-04-19 05 40 10](https://cloud.githubusercontent.com/assets/7343162/2747570/997e6a3e-c774-11e3-96d2-67993cdc49d2.png)