This also change ES_HOME/config -> CONFIG_DIR in the documentation to more accurately reflect the location of configuration files as they are not always in ES_HOME/config. Closes elastic/elasticsearch#455 Closes elastic/elasticsearch#432 Original commit: elastic/x-pack-elasticsearch@63ce35450c
Original commit: elastic/x-pack-elasticsearch@8abbf7468b
Original commit: elastic/x-pack-elasticsearch@15caf307c4