hotspots: Turn on hotspots for new users.

We need a migration to clear the tutorial_status for existing users,
so that we don't show hotspots to anyone who signed up for Zulip in
the month or so since we deleted the old tutorial.

zerver/migrations/0109_mark_tutorial_status_finished.py

@@ -0,0 +1,19 @@
+# -*- coding: utf-8 -*-
+from django.db import models, migrations
+from django.db.backends.postgresql_psycopg2.schema import DatabaseSchemaEditor
+from django.db.migrations.state import StateApps
+
+def set_tutorial_status_to_finished(apps, schema_editor):
+    # type: (StateApps, DatabaseSchemaEditor) -> None
+    UserProfile = apps.get_model('zerver', 'UserProfile')
+    UserProfile.objects.update(tutorial_status=u'F')
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('zerver', '0108_fix_default_string_id'),
+    ]
+
+    operations = [
+        migrations.RunPython(set_tutorial_status_to_finished)
+    ]