Start using actionpack-xml_parser as a gem

XML param parsing was removed from rails 4. We may need to look into dropping support 
for xml api perhaps in favor of a good json api

config/application.rb

@@ -64,5 +64,6 @@ module Tracksapp
     # allow onenote:// and message:// as protocols for urls
     config.action_view.sanitized_allowed_protocols = 'onenote', 'message'
     
+    config.middleware.insert_after ActionDispatch::ParamsParser, ActionDispatch::XmlParamsParser
   end
 end