Switch to side-by-side view

--- a/Allura/allura/templates/repo/barediff.html
+++ b/Allura/allura/templates/repo/barediff.html
@@ -1,10 +1,10 @@
 {% if a.has_image_view and b.has_image_view %}
   <img src="{{a.url()}}?format=raw"
-       alt="{{h.text.truncate(a._commit._id, 10)}}"
-       title="{{h.text.truncate(a._commit._id, 10)}}"/>
+       alt="{{h.text.truncate(a.commit._id, 10)}}"
+       title="{{h.text.truncate(a.commit._id, 10)}}"/>
   <img src="{{b.url()}}?format=raw"
-       alt="{{h.text.truncate(b._commit._id, 10)}}"
-       title="{{h.text.truncate(b._commit._id, 10)}}"/>
+       alt="{{h.text.truncate(b.commit._id, 10)}}"
+       title="{{h.text.truncate(b.commit._id, 10)}}"/>
 {% else %}
   {% if session.diformat == 'sidebyside' %}
     {{diff|safe}}