remove test guest login from home view script
additional default Shibboeleth configuration
overwrite VuFind Shibboleth type
-> method isExpired returns true if there are no Shibboleth attribute variables within server environment
-> this doesn't work for us / at least for the moment
-> currently the Shibboleth session never expires /
as it is with catalog login
include Shibboleth login in default login view script