Fix notifications, which I broke.

This commit sponsored by Denver Gingerich.  Thank you!

mediagoblin/tools/template.py

@@ -94,6 +94,8 @@ def get_jinja_env(template_loader, locale):
     ## but it needs to add stuff to the context.  This is THE WRONG WAY TO DO IT
     from mediagoblin import notifications
     template_env.globals['get_notifications'] = notifications.get_notifications
+    template_env.globals[
+        'get_notification_count'] = notifications.get_notification_count
     template_env.globals[
         'get_comment_subscription'] = notifications.get_comment_subscription