almost complete rewrite of string grid generation to use new image-->grid backend function. i.e. make a string image before but instead of converting it with a lot of assumptions to an image, pass it to the new function which (so far) can generally convert any black on white background image to a maze.
almost complete rewrite of string grid generation to use new image-->grid
backend function. i.e. make a string image before but instead of
converting it with a lot of assumptions to an image, pass it to the new
function which (so far) can generally convert any black on white background
image to a maze.

kobejohn/polymaze