[migration] add missing migration from b4a3cdc

django_mailbox/migrations/0005_auto_20160523_2240.py

@@ -0,0 +1,20 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+import django_mailbox.utils
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('django_mailbox', '0004_bytestring_to_unicode'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='messageattachment',
+            name='document',
+            field=models.FileField(upload_to=django_mailbox.utils.get_attachment_save_path, verbose_name='Document'),
+        ),
+    ]