Fix broken migration

Author: justin-f-perez

fitapp/migrations/0001_initial.py

@@ -52,7 +52,8 @@ class Migration(migrations.Migration):
                 ('fitbit_user', models.CharField(unique=True, max_length=32)),
                 ('auth_token', models.TextField()),
                 ('auth_secret', models.TextField()),
-                ('user', models.OneToOneField(help_text='The user', to=UserModel)),
+                ('user', models.OneToOneField(help_text='The user', to=UserModel,
+                                              on_delete=models.CASCADE)),
             ],
             options={
             },