move South migration uniqueness_constraint_on_group_page_permission t…

…o the right place; add equivalent Django 1.7 migration

wagtail/wagtailcore/migrations/0003_add_uniqueness_constraint_on_group_page_permission.py

@@ -0,0 +1,23 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.db import models, migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('wagtailcore', '0002_initial_data'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='grouppagepermission',
+            name='permission_type',
+            field=models.CharField(max_length=20, choices=[(b'add', b'Add/edit pages you own'), (b'edit', b'Add/edit any page'), (b'publish', b'Publish any page')]),
+        ),
+        migrations.AlterUniqueTogether(
+            name='grouppagepermission',
+            unique_together=set([('group', 'page', 'permission_type')]),
+        ),
+    ]