Put in test for PIL/Pillow conflict that causes issue PBL-1803 with text that tells the user how to resolve it.
Put in test for PIL/Pillow conflict that causes issue PBL-1803 with text that tells the user how to resolve it.

pebble/libpebble,pebble/libpebble,pebble/libpebble,pebble/libpebble