Add missing migration

RIGS/migrations/0022_auto_20150424_2104.py

@@ -0,0 +1,26 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.db import models, migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('RIGS', '0021_auto_20150420_1155'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='event',
+            name='collector',
+            field=models.CharField(max_length=255, null=True, verbose_name=b'Collected by', blank=True),
+            preserve_default=True,
+        ),
+        migrations.AlterField(
+            model_name='event',
+            name='purchase_order',
+            field=models.CharField(max_length=255, null=True, verbose_name=b'PO', blank=True),
+            preserve_default=True,
+        ),
+    ]