docs: function setGlobalLevel(level) {
  	if (!(typeof(level) == 'string' || level instanceof String)) {
  		level = Object.keys(logger.levels).reduce(function (previousValue, currentValue, index, array) {
  			if (logger.levels[previousValue] == level) {
  				return previousValue;
  			} else {
  				return currentValue;
  			}
  		}, logger.level);
  	}
  	
  	logger.level = level;
  	
  	Object.keys(logger.transports).forEach(function (name) {
  		var transport = logger.transports[name];
  		
  		transport.level = level;
  	});
  }