ElasticSearch Plugin Upgrade [1.7 to 5.4] -- Integration Testing

Thanks for the reply, Ryan! Since writing this post, I did some further research and discovered the script engine for advanced scripts page you provided earlier. I opened up this topic because I'm having problems with accessing stored values from documents. My current workaround has been decoding the binary of the stored doc values, converting that to one very long string, and then using regex expressions to get the values I'm looking for, and that has made this script writing process very painful. I've read through the source code to see if there's another work around, but haven't had much luck. Could you possibly point me in the right direction there?