Add a common base email template, translate the emails over to using jinja and add emails when e-mail addresses and passwords are changed.

data/model/legacy.py

@@ -456,18 +456,20 @@ def confirm_user_email(code):
   user = code.user
   user.verified = True
 
+  old_email = None
   new_email = code.new_email
   if new_email:
     if find_user_by_email(new_email):
       raise DataModelException('E-mail address already used.')    
       
+    old_email = user.email
     user.email = new_email
   
   user.save()
 
   code.delete_instance()
 
-  return user, new_email
+  return user, new_email, old_email
 
 
 def create_reset_password_email_code(email):