First attempt at making config loadable through string config overrides in an env variable.

tools/orphans.py

@@ -1,13 +1,11 @@
 from data.database import Image
-from app import app
+from app import app, storage as store
 
 live_image_id_set = set()
 
 for image in Image.select():
   live_image_id_set.add(image.docker_image_id)
 
-store = app.config['STORAGE']
-
 storage_image_id_set = set()
 for customer in store.list_directory('images/'):
   for repo in store.list_directory(customer):