Switch to side-by-side view

--- a/Allura/allura/controllers/template.py
+++ b/Allura/allura/controllers/template.py
@@ -1,5 +1,7 @@
 # -*- coding: utf-8 -*-
 """Fallback controller."""
+
+from pylons.controllers.util import abort
 
 from allura.lib.base import BaseController