private function listOptions() {
		
		// get all of the options
		$options = Config::getOptions();
		
		// sort 'em alphabetically
		ksort($options);
		
		// find length of longest option
		$this->lengthLong = 0;
		foreach ($options as $optionName => $optionValue) {
			$this->lengthLong = (strlen($optionName) > $this->lengthLong) ? strlen($optionName) : $this->lengthLong;
		}
		
		$this->writeOutOptions($options);
		
	}