Added directive to specify HTTP proxy credentials in config.

Added directive to specify HTTP proxy credentials in config.

The inline directive http-proxy-user-pass can be used to
specify proxy credentials in config, e.g.:

http-proxy proxy.tld 3128 auto-nct
<http-proxy-user-pass>
foo
bar
</http-proxy-user-pass>

This usage is already supported by OpenVPN 3.

Signed-off-by: James Yonan <james@openvpn.net>
Acked-by: Arne Schwabe <arne@rfc2549.org>
Acked-by: Gert Doering <gert@greenie.muc.de>
Message-Id: <1456993146-63968-9-git-send-email-james@openvpn.net>
URL: http://article.gmane.org/gmane.network.openvpn.devel/11283
Signed-off-by: Gert Doering <gert@greenie.muc.de>