Add the missing migration left out from previous change

course_discovery/apps/course_metadata/migrations/0067_auto_20171108_1432.py

+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.3 on 2017-11-08 14:32
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('course_metadata', '0066_auto_20171107_1707'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='organization',
+            name='key',
+            field=models.CharField(help_text='Only ascii characters allowed (a-zA-Z0-9)', max_length=255),
+        ),
+    ]