relax user constraint on AbstractApplication model

Author: poswald

oauth2_provider/migrations/0003_auto_20160316_1503.py

@@ -0,0 +1,20 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+from django.conf import settings
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('oauth2_provider', '0002_08_updates'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='application',
+            name='user',
+            field=models.ForeignKey(related_name='oauth2_provider_application', blank=True, to=settings.AUTH_USER_MODEL, null=True),
+        ),
+    ]