Added sub-folder for elasticsearch mappings cache due conflict with other ONGR bundles
Added sub-folder for elasticsearch mappings cache due conflict with other ONGR bundles

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