title: Ruby: configuration file parser combined with OptionParser
body: <p>I've got a script utilizing OptionParser and I want to add config file for the program which will have <code>option = value</code> format and <code># comments</code>. Is there any way to make OptionParser parse files or some class able to use OptionParser rules and switches for config files?</p>
  
  <p>Thank you.</p>