NTLM working again

Let's look at the fix:

Configuration.

Midgard Vhost configuration file.
Do not add MidgardAuthType PAM. NTLM and PAM authentication can not work together.

Samba configuration.
Do not use default domain for winbind.

winbind use default domain = false

Finally I discovered that pipe file used by winbind supports only username without domain name. And what is more interesting midgard library tried to get username and domain from DOMAIN\USERNAME string.  Changing sources to use '+' separator fixed the issue for default winbind separator configured in samba configuration file.

winbind separator = +