History for SecurePortalDashboard

??changed:
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Fundamental Requirements

 * Allow PortalMember(s) to join and login using their existing
   SMB credentials (highest)

 * Honor previous authentications (e.g., from viewing the site "above"
   the portal) (high)

 * Avoid manual "member setup" hassles (i.e., create member folders
   "lazily", rather than in an "eager" upfront batch).

   -- *Note that ditching this requirement would trim initial deployment
       time significantly: a "preloaded" portal would only have to solve
       the bare authentication problem, and could sidestep trying to set
       up accounts-on-demand cleanly.*

Key Topics (especially important if we DoTheRightThing)

 * ExternalMemberAuthentication

   - PortalUsesAcquiredUserFolder

   - PortalEmbedsExternalUserSource

   - JoinOnlyCreatesMemberFolder

 * Authentication types

   - SMBValid

   - PluggableAuthenticationModule

   - KerberosTicket

   - LightweightDirectoryAccessProtocol

   - XFiveOhNineCertificate

Quick hacks

   - Rip out the user-creation code in the current join mechanism (but
     leave the CreateMemberFolder bit)

   - Rip out the part which creates a user folder when during portal
     instantiation