Switch to side-by-side view

--- a/Allura/allura/model/auth.py
+++ b/Allura/allura/model/auth.py
@@ -314,7 +314,7 @@
         if self.private_project() and self.private_project().icon:
             icon_url = self.url()+'user_icon'
         elif self.preferences.email_address:
-            icon_url = g.gravatar(self.preferences.email_address, default=None)
+            icon_url = g.gravatar(self.preferences.email_address)
         return icon_url
 
     @classmethod