updated changelog
updated changelog

murnieza/ElasticsearchBundle,martiis/ElasticsearchBundle,ongr-io/ElasticsearchBundle,murnieza/ElasticsearchBundle,tautrimas/ElasticsearchBundle,trandangtri/ElasticsearchBundle,saimaz/ElasticsearchBundle,asev/ElasticsearchBundle,saimaz/ElasticsearchBundle,asev/ElasticsearchBundle,tautrimas/ElasticsearchBundle,martiis/ElasticsearchBundle,trandangtri/ElasticsearchBundle