TODO:
----

 - Add chroot capability
 - Add configuration file
 - Logging options:
   + LogFacility
   + LogLevel
 - Access options:
   + AllowScp  (global default)
   + AllowSFTP (global default)
   + UseChroot  (global chroot option)
   + ChrootPath (global chroot path)
   + User (per-user access controls)

User = username:access:chrootpath

   username: user's username as it appears on the system
   access: series of binary digits indicating access
	000
	|||
	||\ allow scp for this user
	|\ allow sftp for this user
	\ chroot the user to the chroot path specified in the user's entry
   chrootpath: path where the user should be chrooted to
	(can be absolute, or relative to ~)
