Required files
www/mechanize/chain/handler
www/mechanize/chain/uri_resolver
www/mechanize/chain/parameter_resolver
www/mechanize/chain/request_resolver
www/mechanize/chain/custom_headers
www/mechanize/chain/connection_resolver
www/mechanize/chain/ssl_resolver
www/mechanize/chain/pre_connect_hook
www/mechanize/chain/auth_headers
www/mechanize/chain/header_resolver
www/mechanize/chain/response_body_parser
www/mechanize/chain/response_header_handler
www/mechanize/chain/response_reader
www/mechanize/chain/body_decoding_handler