Hitting back button during game to undo (instead of quit the program).
Hitting back button during game to undo (instead of quit the program).



git-svn-id: 3a181ccea5c64942b35348d0e7ddde63b5c0a5ed@5 a7cd26e8-b5a0-11dd-b6ab-49f5beb571ba

idealisms/solitaire-for-android,hedwig34/solitaire-for-android,pserwylo/solitaire-for-android