ossh, S/Key AND password authentication

[Carson Gaspar]

My partial authentication support patch will allow you to do most of this. 
I should have a new version of the patch against current CVS soon.

The only issue is the s/key followed by password, since the SSH protocol 
uses the same mechanism for both of these. I'll see if I can leverage the 
bsdauth stuff to allow something like:

AuthOrder publickey, password at skey:password at passwd, 
kbd-interactive at skey:kbd-interactive at passwd

-- 
Carson