#4 Grid width/height in configuration window wrong

[Anton Persson]

When changing the grid width/height settings in the
configuration window to other then 8*8, and pressing
return, the grid is updated. Pressing the use or save
button updates the main GUI correctly. However, when
opening the configuration window again, the width and
height entries say 8 and 8, again. (The grid in the
editor is correct, however.)