Add specified user attributes to the environment when using

mod_auth_ldap. This allows you to use mod_include to embed specified
user attributes in a page like so:
Hello <!--#echo var="AUTHENTICATE_CN"-->, how are you?
PR:
Obtained from:
Submitted by:
Reviewed by:


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@90775 13f79535-47bb-0310-9956-ffa450edef68