[ISSUE-3/4] Adds test container and tooling (#8)

* Adding black, isort, and flake8 to pytest

* Applying black, flake8, and isort to codebase

comic/migrations/0018_auto_20170113_1531.py

@@ -9,7 +9,7 @@ def gen_feeds(apps, schema_editor):
     user_misc = apps.get_model("comic", "UserMisc")
     User = apps.get_model("auth", "user")
     for user in User.objects.all():
-        um = user_misc.objects.create(user=user)
+        user_misc.objects.create(user=user)
 
 
 class Migration(migrations.Migration):