Switch to side-by-side view

--- a/Allura/allura/templates/repo/diff.html
+++ b/Allura/allura/templates/repo/diff.html
@@ -15,17 +15,17 @@
 {% block content %}
   {{ clone_info(c.app.repo) }}
   {% if (not a.has_html_view and not a.has_image_view) or (not b.has_html_view and not b.has_image_view) %}
-    {{a.name}} cannot be displayed in your browser.
-    You may, however, <a href="?format=raw">download this file</a> instead.
+    <p>{{a.name}} cannot be displayed in your browser.
+    You may, however, <a href="?format=raw">download this file</a> instead.</p>
   {% endif %}
   {% if a.has_html_view and b.has_html_view %}
-  <div class="clip">
+  <div class="clip grid-19">
     <h3><span class="ico-l"><b class="ui-icon ui-icon-document"></b> {{h.really_unicode(a.filename) or '&nbsp;'}}</span></h3>
     {{g.highlight(diff, lexer='diff')}}
   </div>
   {% endif %}
   {% if a.has_image_view and b.has_image_view %}
-  <div>
+  <div class="grid-19">
     <img src="{{a.url()}}?format=raw"
          alt="{{h.text.truncate(a._commit._id, 10)}}"
          title="{{h.text.truncate(a._commit._id, 10)}}"/>