Add management file to packages so django can find it

setup.py

@@ -6,7 +6,7 @@
     version='1.0.0',
     author='Saul Shanabrook',
     author_email='s.shanabrook@gmail.com',
-    packages=['simpleimages', ],
+    packages=['simpleimages', 'simpleimages.management.commands'],
     url='https://www.github.com/saulshanabrook/django-simpleimages',
     license=open('LICENSE.txt').read(),
     description='Opinionated Django image transforms on models',