Switch to side-by-side view

--- a/Allura/allura/model/discuss.py
+++ b/Allura/allura/model/discuss.py
@@ -404,6 +404,9 @@
             return '%s#%s' % (self.thread.shorthand_id(), self.slug)
         else: # pragma no cover
             return None
+
+    def link_text(self):
+        return self.subject
 
     def reply_subject(self):
         if self.subject and self.subject.lower().startswith('re:'):