Add migrations to sync model options.

mayan/apps/document_indexing/migrations/0004_auto_20150708_0113.py

@@ -0,0 +1,20 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.db import models, migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('document_indexing', '0003_auto_20150708_0101'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='index',
+            name='label',
+            field=models.CharField(unique=True, max_length=128, verbose_name='Label'),
+            preserve_default=True,
+        ),
+    ]