kub_todo.txt

*Draw numbers centered horizontally on tile
    a)Measure width of numbers
    b)Get rid of approximated hard-coded values

*Examine group_is_run_one() and bug in group_is_run_two()
    to determine optimum solution for checking for valid runs.

*Draw game->current_tile (tile being dragged) in front of all other tiles.

*Allow user to drag-n-drop tile on top/next to another tile in order
    to group them together, side by side.
    
*Allow user to click-n-drag area to select multiple tiles to group together
	a)highlight region
	b)highlight tiles selected