move com.livehereandnow.suodku.app back to this project 
to ease development concern at this moment
add command quit, to end application gracefully

 *====================================*
 *   Welcome to Taijimark's Sudoku!   *
 *====================================*

 cmd:quit
 ans:to end this application.
 *====================================*
 *    Thank You! See You Next Time!   *
 *====================================*