add dj1.7 migration for adding 'colour' to AdvertPlacement test model

wagtail/tests/migrations/0003_auto_20140905_0634.py

@@ -0,0 +1,20 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.db import models, migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('tests', '0002_auto_20140827_0908'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='advertplacement',
+            name='colour',
+            field=models.CharField(default='blue', max_length=255),
+            preserve_default=False,
+        ),
+    ]