Put images in the ~/DAWN/NEW_IMAGES

Build a list of images to process, ['newpix.txt']. This is used by ['process_img'] to read the images and build make_sumfiles.in.

cd ~/DAWN/NEW_IMAGES
ls > newpix.txt
mv newpix.txt ../../working

~/bin/e.process_img

Output is ['make_sumfiles.in']