[cups.development] Kerberos multiple personalities

[Andy Polyakov]

> Alternative approach could be to examine 
> User-Agent field in HTTP header and assume different personalities 
> depending on outcome, specifically if User-Agent is CUPS/*, then assume 
> ipp at server identity, otherwise HTTP at server.

Or better yet, see if request's Content-Type is application/ipp. As far 
as alternative approach goes that is. A.