Merge pull request #506 from EreMaijala/shib-conf-fix

Added a comment on how to properly enable Shibboleth authentication.

config/vufind/httpd-vufind.conf

@@ -25,9 +25,12 @@ Alias /vufind /usr/local/vufind/public
   </IfModule>
   AllowOverride All
 
-  # Uncomment the following lines, if you wish to use the Shibboleth authentication
+  # If you wish to use the Shibboleth authentication, uncomment the following lines
+  # AND comment out the "Require all granted" line above. There must not be any other
+  # "Require" lines in this configuration section for the "Require shibboleth"
+  # directive to be effective.
   #AuthType shibboleth
-  #require shibboleth
+  #Require shibboleth
 
   RewriteEngine On
   RewriteBase /vufind