Added migration to install hstore_extension

restscrape/migrations/0000_create_hstore.py

@@ -0,0 +1,11 @@
+from __future__ import unicode_literals
+from django.contrib.postgres.operations import HStoreExtension
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    run_before = [("restscrape", "0001_initial")]
+
+    operations = [HStoreExtension()]