Add missing events app migration.

Signed-off-by: Roberto Rosario <roberto.rosario.gonzalez@gmail.com>

mayan/apps/events/migrations/0007_auto_20170802_0823.py

@@ -0,0 +1,19 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.10.7 on 2017-08-02 08:23
+from __future__ import unicode_literals
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('events', '0006_objecteventsubscription'),
+    ]
+
+    operations = [
+        migrations.AlterModelOptions(
+            name='notification',
+            options={'ordering': ('-action__timestamp',), 'verbose_name': 'Notification', 'verbose_name_plural': 'Notifications'},
+        ),
+    ]