fix related name for placeholder fields

datacenterlight/migrations/0017_auto_20180329_0056.py

@@ -0,0 +1,27 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.9.4 on 2018-03-28 19:26
+from __future__ import unicode_literals
+
+import cms.models.fields
+from django.db import migrations
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('datacenterlight', '0016_cmsintegration'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='cmsintegration',
+            name='footer_placeholder',
+            field=cms.models.fields.PlaceholderField(editable=False, null=True, on_delete=django.db.models.deletion.CASCADE, related_name='dcl-footer-placeholder+', slotname='datacenterlight_footer', to='cms.Placeholder'),
+        ),
+        migrations.AlterField(
+            model_name='cmsintegration',
+            name='navbar_placeholder',
+            field=cms.models.fields.PlaceholderField(editable=False, null=True, on_delete=django.db.models.deletion.CASCADE, related_name='dcl-navbar-placeholder+', slotname='datacenterlight_navbar', to='cms.Placeholder'),
+        ),
+    ]