updated changelog
updated changelog

(cherry picked from commit 93bc51f)

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