Bugfix: authX509 error messages were broken.
Bugfix: authX509 error messages were broken.

Changes to the translation system made all authX509 messages show
as "Not translated", because the new mapping of error codes to
error messages was not passed to the template.

dnmvisser/simplesamlphp,dnmvisser/simplesamlphp,ghalse/simplesamlphp,simplesamlphp/simplesamlphp,dnmvisser/simplesamlphp,simplesamlphp/simplesamlphp,simplesamlphp/simplesamlphp,dnmvisser/simplesamlphp,ghalse/simplesamlphp,simplesamlphp/simplesamlphp,ghalse/simplesamlphp,ghalse/simplesamlphp