def parse_files(files, options = {}, &block) # :yields: request
      files.each { |file| parse_file(file, options, &block) }
    end
def parse_files(files, options = {}, &block) # :yields: request
      files.each { |file| parse_file(file, options, &block) }
    end
Parses a list of subsequent files of the same format, by calling parse_file for every
 file in the array.
 <tt>files</tt>:: The Array of files that should be parsed
 <tt>options</tt>:: A Hash of options that will be pased to parse_io.