Improve RegistrantChangeMailer

- Do not show registrant address unless "address_processing" is enabled
- Add missing registrant state and zip attributes

#480

app/models/contact.rb

@@ -594,4 +594,8 @@ class Contact < ActiveRecord::Base
     return unless priv?
     ident
   end
+
+  def ident_country
+    Country.new(ident_country_code)
+  end
 end