Log Message:
Update to 3.2.3
Add documentation
v3.2.3   (Jan Wolter - Feb 26, 2009)
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 * Added GroupExternalError directive, which allows you to specify the
   HTTP error code to be returned if the group access check fails.
   Defaut is 401, but you may want to return 403 if you want to show the
   user an error page instead of asking him to login again.  Thanks to
   Peter Crawshaw <pcrawshaw@mta.ca> for this patch.
 * In hopes of getting to a more consistantly named set of directives,
   added new aliases for two old directives:
      GroupExternalAuthoritative    alias for    AuthzExternalAuthoritative
      GroupExternalManyAtOnce       alias for    AuthExternalGroupsAtOnce
   Documentation updated to refer primarily to the new names.

v3.2.2   (Jan Wolter - Dec 1, 2008)
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 THIS RELEASE UPDATES DOCUMENTATION ONLY!
 * Improved documentation of AuthExternalContext directive in the INSTALL
   file.
 * Added documentation to the UPGRADE file on interactions between multiple
   Require directives.