fix generated_blessed_images.py to invoke correctly draw_simple_elevation_on_file
fix generated_blessed_images.py to invoke correctly draw_simple_elevation_on_file

esampson/worldengine,MM1nd/worldengine,esampson/worldengine,MM1nd/worldengine,Mindwerks/worldengine,Mindwerks/worldengine,psi29a/worldengine,psi29a/worldengine