def store_file(filename, content)
      zip.put_next_entry filename, nil, nil, Zip::Entry::STORED, Zlib::NO_COMPRESSION
      zip.write content.to_s
    end
def store_file(filename, content)
      zip.put_next_entry filename, nil, nil, Zip::Entry::STORED, Zlib::NO_COMPRESSION
      zip.write content.to_s
    end
Store a file in the archive without any compression.

 @param [String] filename under the which the data should be stored
 @param [#to_s] content to be compressed