bugfix: Allow exception messages different than "You have not yet created the...

bugfix: Allow exception messages different than "You have not yet created the SimpleSAMLphp configuration files.".

Right now, that's the only error message that you will ever get if something goes wrong with the configuration, no matter what. The message should not be hardcoded, but use the one from the captured exception instead.

www/_include.php

@@ -96,7 +96,7 @@ try {
     SimpleSAML_Configuration::getInstance();
 } catch (Exception $e) {
     throw new \SimpleSAML\Error\CriticalConfigurationError(
-        'You have not yet created the SimpleSAMLphp configuration files.'
+        $e->getMessage()
     );
 }