NTLM Proxy does not work

Due to the approach NTLM proxies do not authenticate (407 error). Making it not work. As we needed this for our company, i change the approach from URLConnection to Apache httpclient lib and it works fine now. If interested in a pull request, i could provide one.

[trekawek]

@ByteFader, hello after 2.5 years ;) I'm really sorry for not responding earlier, I've messed up my notification settings for this repository. If you're still interesting in helping with the NTLM proxy issue, please send some reference to your httpclient lib branch. Thanks!