requires HTTP::Cookies

Plack has failed install in 1.0027.

```
ytnobody@Upas:~/Plack$ uname -a
Linux Upas 3.2.0-45-generic #70-Ubuntu SMP Wed May 29 20:11:31 UTC 2013 i686 i686 i386 GNU/Linux
```

test log
```
PERL_DL_NONLAZY=1 /home/ytnobody/.plenv/versions/5.16.3/bin/perl5.16.3 "-MExtUtils::Command::MM" "-e" "test_harness(0, 'blib/lib', 'blib/arch')" t/*.t t/HTTP-Message-PSGI/*.t t/HTTP-Server-PSGI/*.t t/Plack-Builder/*.t t/Plack-HTTPParser-PP/*.t t/Plack-Handler/*.t t/Plack-Loader/*.t t/Plack-MIME/*.t t/Plack-Middleware/*.t t/Plack-Middleware/cascade/*.t t/Plack-Middleware/recursive/*.t t/Plack-Middleware/stacktrace/*.t t/Plack-Request/*.t t/Plack-Response/*.t t/Plack-Runner/*.t t/Plack-TempBuffer/*.t t/Plack-Test/*.t t/Plack-Util/*.t
t/HTTP-Message-PSGI/content_length.t ............... ok
t/HTTP-Message-PSGI/empty_streamed_response.t ...... ok
t/HTTP-Message-PSGI/host.t ......................... ok
t/HTTP-Message-PSGI/path_info.t .................... ok
t/HTTP-Message-PSGI/utf8_req.t ..................... ok
t/HTTP-Server-PSGI/harakiri.t ...................... skipped: Test requires module 'LWP::UserAgent' but it's not found
t/HTTP-Server-PSGI/post.t .......................... skipped: Test requires module 'LWP::UserAgent' but it's not found
t/Plack-Builder/builder.t .......................... ok
t/Plack-Builder/mount.t ............................ ok
t/Plack-Builder/oo_interface.t ..................... ok
t/Plack-Handler/apache1.t .......................... skipped: Test requires module 'LWP::UserAgent' but it's not found
t/Plack-Handler/apache2-registry.t ................. skipped: Test requires module 'LWP::UserAgent' but it's not found
t/Plack-Handler/apache2.t .......................... skipped: Test requires module 'LWP::UserAgent' but it's not found
t/Plack-Handler/cgi.t .............................. skipped: Test requires module 'HTTP::Request::AsCGI' but it's not found
t/Plack-Handler/fcgi.t ............................. skipped: Test requires module 'FCGI' but it's not found
t/Plack-Handler/http_server_simple.t ............... skipped: Test requires module 'HTTP::Server::Simple::PSGI' but it's not found
t/Plack-Handler/output_encoding.t .................. ok
t/Plack-Handler/standalone.t ....................... ok
t/Plack-HTTPParser-PP/simple.t ..................... ok
t/Plack-Loader/auto.t .............................. ok
t/Plack-Loader/auto_fallback.t ..................... ok
t/Plack-Loader/delayed.t ........................... ok
t/Plack-Loader/restarter.t ......................... skipped: Test requires module 'LWP::UserAgent' but it's not found
Possible attempt to put comments in qw() list at t/Plack-Loader/restarter_valid.t line 16.
t/Plack-Loader/restarter_valid.t ................... ok
t/Plack-Loader/shotgun.t ........................... ok
t/Plack-Middleware/access_log.t .................... ok
t/Plack-Middleware/access_log_timed.t .............. ok
t/Plack-Middleware/access_log_value_zero.t ......... ok
t/Plack-Middleware/auth_basic.t .................... ok
t/Plack-Middleware/auth_basic_env.t ................ ok
t/Plack-Middleware/auth_basic_simple.t ............. skipped: Test requires module 'Authen::Simple::Passwd' but it's not found
t/Plack-Middleware/bufferedstreaming.t ............. ok
t/Plack-Middleware/cascade/basic.t ................. ok
t/Plack-Middleware/cascade/streaming.t ............. ok
t/Plack-Middleware/cgibin.t ........................ skipped: Test requires module 'CGI::Emulate::PSGI' but it's not found
t/Plack-Middleware/cgibin_exec.t ................... skipped: Test requires module 'CGI::Emulate::PSGI' but it's not found
t/Plack-Middleware/chunked.t ....................... skipped: Test requires module 'IO::Handle::Util' but it's not found
t/Plack-Middleware/component-leak.t ................ ok
t/Plack-Middleware/component.t ..................... skipped: Test requires module 'IO::Handle::Util' but it's not found
t/Plack-Middleware/conditional.t ................... ok
t/Plack-Middleware/conditional_new.t ............... ok
t/Plack-Middleware/conditionalget.t ................ ok
t/Plack-Middleware/conditionalget_writer.t ......... ok
t/Plack-Middleware/content_length.t ................ ok
t/Plack-Middleware/directory.t ..................... ok
t/Plack-Middleware/error_document.t ................ ok
t/Plack-Middleware/error_document_streaming_app.t .. ok
t/Plack-Middleware/file.t .......................... ok
t/Plack-Middleware/head.t .......................... ok
t/Plack-Middleware/head_streaming.t ................ ok
t/Plack-Middleware/httpexceptions.t ................ ok
t/Plack-Middleware/httpexceptions_streaming.t ...... ok
t/Plack-Middleware/iis6_script_name_fix.t .......... ok
t/Plack-Middleware/iis7_keep_alive_fix.t ........... ok
t/Plack-Middleware/jsonp.t ......................... ok
t/Plack-Middleware/lint.t .......................... ok
t/Plack-Middleware/lint_env.t ...................... ok
t/Plack-Middleware/lint_utf8_false_alarm.t ......... ok
t/Plack-Middleware/log4perl.t ...................... skipped: Test requires module 'Log::Log4perl' but it's not found
t/Plack-Middleware/log_dispatch.t .................. skipped: Test requires module 'Log::Dispatch::Array' but it's not found
t/Plack-Middleware/order.t ......................... ok
t/Plack-Middleware/prefix.t ........................ ok
t/Plack-Middleware/psgibin.t ....................... ok
t/Plack-Middleware/rearrange_headers.t ............. ok
t/Plack-Middleware/recursive/base.t ................ ok
t/Plack-Middleware/recursive/streaming.t ........... ok
t/Plack-Middleware/recursive/throw.t ............... ok
t/Plack-Middleware/recursive/throw_streaming.t ..... ok
t/Plack-Middleware/refresh-init.t .................. skipped: Test requires module 'Module::Refresh' but it's not found
t/Plack-Middleware/runtime.t ....................... ok
t/Plack-Middleware/simple_content_filter.t ......... ok
t/Plack-Middleware/simple_logger.t ................. ok
t/Plack-Middleware/stacktrace/basic.t .............. ok
t/Plack-Middleware/stacktrace/force.t .............. ok
t/Plack-Middleware/stacktrace/sigdie.t ............. ok
t/Plack-Middleware/stacktrace/streaming.t .......... ok
t/Plack-Middleware/stacktrace/utf8.t ............... ok
t/Plack-Middleware/static.t ........................ ok
t/Plack-Middleware/static_env.t .................... ok
t/Plack-Middleware/urlmap.t ........................ ok
t/Plack-Middleware/urlmap_builder.t ................ ok
t/Plack-Middleware/urlmap_env.t .................... ok
t/Plack-Middleware/urlmap_ports.t .................. ok
t/Plack-Middleware/wrapcgi.t ....................... skipped: Test requires module 'CGI::Emulate::PSGI' but it's not found
t/Plack-Middleware/wrapcgi_exec.t .................. skipped: Test requires module 'CGI::Emulate::PSGI' but it's not found
t/Plack-Middleware/xframework.t .................... ok
t/Plack-Middleware/xsendfile.t ..................... ok
t/Plack-MIME/add_type.t ............................ ok
t/Plack-MIME/basic.t ............................... ok
t/Plack-MIME/fallback.t ............................ skipped: Test requires module 'MIME::Types' but it's not found
t/Plack-Request/base.t ............................. ok
t/Plack-Request/body.t ............................. ok
t/Plack-Request/content-on-get.t ................... ok
t/Plack-Request/content.t .......................... ok
t/Plack-Request/cookie.t ........................... ok
t/Plack-Request/double_port.t ...................... ok
t/Plack-Request/hostname.t ......................... ok
t/Plack-Request/many_upload.t ...................... ok
t/Plack-Request/multi_read.t ....................... ok
t/Plack-Request/new.t .............................. ok
t/Plack-Request/parameters.t ....................... ok
t/Plack-Request/params.t ........................... ok
t/Plack-Request/path_info.t ........................ ok
t/Plack-Request/path_info_escaped.t ................ ok
t/Plack-Request/readbody.t ......................... ok
t/Plack-Request/request_uri.t ...................... ok
t/Plack-Request/upload-basename.t .................. ok
t/Plack-Request/upload-large.t ..................... ok
t/Plack-Request/upload.t ........................... ok
t/Plack-Request/uri.t .............................. ok
t/Plack-Request/uri_utf8.t ......................... ok
t/Plack-Response/body.t ............................ ok
t/Plack-Response/compatible.t ...................... ok
t/Plack-Response/cookie.t .......................... ok
t/Plack-Response/new.t ............................. ok
t/Plack-Response/redirect.t ........................ ok
t/Plack-Response/response.t ........................ ok
t/Plack-Response/to_app.t .......................... ok
t/Plack-Runner/options.t ........................... ok
t/Plack-Runner/path.t .............................. skipped: Test requires module 'LWP::UserAgent' but it's not found
t/Plack-TempBuffer/print.t ......................... ok
t/Plack-Test/2args.t ............................... ok
Can't locate HTTP/Cookies.pm in @INC (@INC contains: /home/ytnobody/.cpanm/work/1371274956.23339/Plack-1.0027/blib/lib /home/ytnobody/.cpanm/work/1371274956.23339/Plack-1.0027/blib/arch /home/ytnobody/.plenv/versions/5.16.3/lib/perl5/site_perl/5.16.3/i686-linux /home/ytnobody/.plenv/versions/5.16.3/lib/perl5/site_perl/5.16.3 /home/ytnobody/.plenv/versions/5.16.3/lib/perl5/5.16.3/i686-linux /home/ytnobody/.plenv/versions/5.16.3/lib/perl5/5.16.3 .) at t/Plack-Test/cookie.t line 4.
BEGIN failed--compilation aborted at t/Plack-Test/cookie.t line 4.
t/Plack-Test/cookie.t .............................. 
Dubious, test returned 2 (wstat 512, 0x200)
No subtests run 
t/Plack-Test/hello.t ............................... ok
t/Plack-Test/hello_server.t ........................ ok
t/Plack-Test/suite.t ............................... ok
t/Plack-Util/foreach.t ............................. ok
t/Plack-Util/headers.t ............................. ok
t/Plack-Util/headers_obj.t ......................... ok
t/Plack-Util/inline_object.t ....................... ok
t/Plack-Util/io_with_path.t ........................ ok
t/Plack-Util/is_real_fh.t .......................... ok
t/Plack-Util/load.t ................................ ok
t/Plack-Util/response_cb.t ......................... ok
t/release-pod-syntax.t ............................. skipped: these tests are for release candidate testing

Test Summary Report
-------------------
t/Plack-Test/cookie.t                            (Wstat: 512 Tests: 0 Failed: 0)
  Non-zero exit status: 2
  Parse errors: No plan found in TAP output
Files=135, Tests=910, 47 wallclock secs ( 1.70 usr  0.35 sys + 40.69 cusr  3.67 csys = 46.41 CPU)
Result: FAIL
Failed 1/135 test programs. 0/910 subtests failed.
make: *** [test_dynamic] エラー 255
```