Multiple fiels now parsed with one aggregator.

  # Given array of filenames, parses all files and returns array of

  # documented items in all of those files.

  def self.parse_files(filenames, verbose)

    docs = []

    agr = Aggregator.new

    filenames.each do |name|

      puts "Parsing #{name} ..." if verbose

      JsDuck.parse(IO.read(name)).each { |d| docs << d }

      agr.parse(IO.read(name))

    end

    docs

    agr.result

  end

  # Filters out class-documentations, converting them to Class objects.