[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/0005_auto_20150625_1400.py

@@ -2,7 +2,7 @@
 from __future__ import unicode_literals
 
 from django.conf import settings
-from django.db import models, migrations
+from django.db import migrations, models
 
 
 class Migration(migrations.Migration):