Added missing migration

course_discovery/apps/edx_haystack_extensions/migrations/0002_auto_20160826_1750.py

+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+import jsonfield.fields
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('edx_haystack_extensions', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='elasticsearchboostconfig',
+            name='function_score',
+            field=jsonfield.fields.JSONField(verbose_name='Function Score', help_text='JSON string containing an elasticsearch function score config.', default={'boost_mode': 'multiply', 'boost': 1.0, 'functions': [], 'score_mode': 'multiply'}),
+        ),
+    ]