r8629: - moved the getDomainList() call out of smbcalls_auth.c and into libjs/auth.js

r8629: - moved the getDomainList() call out of smbcalls_auth.c and into libjs/auth.js

- tried to make the ejs_userAuth() call work for the sam, not just for
  unix auth. I didn't get this working. Andrew, when you get a chance
  can you see what I'm doing wrong? I suspect its because we aren't
  supplying a challenge, but a challenge doesn't really make sense in a
  'is this username/password' correct call.
(This used to be commit 9e07c08a71908e99c2f44efc40a3249facd6850f)