ES : provide basic mapping for doc index, implements #433
ES : provide basic mapping for doc index, implements #433

foromer4/storm-crawler,jorgelbg/storm-crawler,XciD/storm-crawler,DigitalPebble/storm-crawler,DigitalPebble/storm-crawler,anjackson/storm-crawler,jorgelbg/storm-crawler,anjackson/storm-crawler,XciD/storm-crawler,foromer4/storm-crawler