Improved cookie jar storage

This patch is a workaround for next example.

If server response has follow headers:

```
Set-Cookie: user=admin; Expires=Sat, 6-Aug-2016 09:36:54 GMT; Path=/; Domain=example.com
Set-Cookie: user=; expires=Thu, 1-Jan-1970 01:00:00 GMT; path=/
```

HTTP::Cookies delete cookie be name 'user' from jar. But all modern browser save first cookie (user=admin) for ".example.com" domain and delete second cookie (user=) for "example.com" domain.