Reduce older log messages to level 4 and collect some errors.

We take all of the kdc_log() and _kdc_r_log() calls in AS and TGS
and move their log levels down to debugging on the assumption that
our new log line subsumes the "informational" requirements.  We
collect some additional information in the kv-pair "pe-text" which
is like e-text except it is not returned to the client.

kdc/windc.c

@@ -212,10 +212,7 @@ _kdc_check_access(astgs_request_t r, KDC_REQ *req, METHOD_DATA *method_data)
     }
 
     if (ret == KRB5_PLUGIN_NO_HANDLE)
-	return kdc_check_flags(context, config,
-			       client_ex, client_name,
-			       server_ex, server_name,
-			       req->msg_type == krb_as_req);
+	return kdc_check_flags(r, req->msg_type == krb_as_req);
     return ret;
 }