Switch to side-by-side view

--- a
+++ b/forgeblog/templates/blog/post_diff.html
@@ -0,0 +1,23 @@
+{% extends g.theme.master %}
+
+{% block title %}{{c.project.name}} / {{c.app.config.options.mount_label}} / {{p1.title}}{% endblock %}
+
+{% block header %}{{p1.title}}{% endblock %}
+
+{% block extra_css %}
+    <style type="text/css">
+      .diff_add { text-decoration: underline; background-color: #0f0; }
+      .diff_sub { text-decoration: line-through; background-color: #f00; }
+      ins { text-decoration: none; background-color: lightgreen; }
+      del { text-decoration: none; background-color: pink; }
+    </style>
+{% endblock %}
+
+{% block content %}
+          <p>Comparing <a href=".?version={{p1.version}}">Version {{p1.version}}</a>
+            with <a href=".?version={{p2.version}}">Version {{p2.version}}</a></p>
+          <hr/>
+          <div style="font-family: fixed">
+            {{edits|safe}}
+          </div>
+{% endblock %}