String ONLINE_HELP_INSTALLATION = "online.help.installation";

    /** The key of the configuration. e.g. https://fess.codelibs.org/{lang}/eol.html */
    String ONLINE_HELP_EOL = "online.help.eol";

    /** The key of the configuration. e.g. failureurl */
    String ONLINE_HELP_NAME_FAILUREURL = "online.help.name.failureurl";