Update php-elasticsearch to 5.3 (#1336)
Update php-elasticsearch to 5.3 (#1336)


ruflin/Elastica,miniplay/Elastica,giovannialbero1992/Elastica,stof/Elastica,p365labs/Elastica,miniplay/Elastica,p365labs/Elastica,giovannialbero1992/Elastica,stof/Elastica