code: @SuppressWarnings("unchecked")
    public static Map<String, String> parseCommandLineArguments(String[] args) {
      return (Map)parseCommandLineArguments(args, false);
    }
docs: A simpler form of command line argument parsing.
  Dan thinks this is highly superior to the overly complexified code that
  comes before it.
  Parses command line arguments into a Map. Arguments of the form
  -flag1 arg1 -flag2 -flag3 arg3
  will be parsed so that the flag is a key in the Map (including the hyphen)
  and the
  optional argument will be its value (if present).
  
  @return A Map from keys to possible values (String or null)