Switch to side-by-side view

--- a/Allura/allura/tasks/index_tasks.py
+++ b/Allura/allura/tasks/index_tasks.py
@@ -27,6 +27,7 @@
                 ref.references = [
                     link.ref_id for link in find_shortlinks(s['text']) ]
             except Exception:
+                log.error('Error indexing artifact %s', ref_id)
                 exceptions.append(sys.exc_info())
     if exceptions:
         raise CompoundError(*exceptions)