Switch to side-by-side view

--- a/Allura/allura/model/discuss.py
+++ b/Allura/allura/model/discuss.py
@@ -527,6 +527,12 @@
         return self.attachment_class().query.find(dict(
             post_id=self._id, type='attachment'))
 
+    def add_multiple_attach(self, file_info):
+        if isinstance(file_info, list):
+            map(self.add_attachment, file_info)
+        else:
+            self.add_attachment(file_info)
+
     def add_attachment(self, file_info):
         if hasattr(file_info, 'file'):
             mime_type = file_info.type