#1317 elasticsearch 6 support

dbflute.xml

dbflute_fess/dfprop/esfluteMap.dfprop

plugin.xml

pom.xml

src/main/config/es/fess_config.json

src/main/config/es/fess_config_access_token.json

src/main/config/es/fess_config_bad_word.json

src/main/config/es/fess_config_boost_document_rule.json

src/main/config/es/fess_config_crawling_info.json

src/main/config/es/fess_config_crawling_info_param.json

src/main/config/es/fess_config_data_config.json

src/main/config/es/fess_config_data_config_to_label.json

src/main/config/es/fess_config_data_config_to_role.json

src/main/config/es/fess_config_duplicate_host.json

src/main/config/es/fess_config_elevate_word.json

src/main/config/es/fess_config_elevate_word_to_label.json

src/main/config/es/fess_config_failure_url.json

src/main/config/es/fess_config_file_authentication.json

src/main/config/es/fess_config_file_config.json

src/main/config/es/fess_config_file_config_to_label.json