fix logging to stdout and document logging configuration

lib/log.js

@@ -86,6 +86,7 @@ Logger.create = function (config, cb) {
         channelName: launchTime,
         logFeedback: Boolean(config.logFeedback),
         logLevel: config.logLevel,
+        logToStdout: config.logToStdout,
     };
 
     if (!config.logPath) {