- reworked usage of IDs in various states

- using ID_ANY for any, not NULL as before
- initiator sends IDr payload in IKE_AUTH when ID unique

Source/charon/sa/ike_sa.c

@@ -1007,7 +1007,7 @@ static void log_status(private_ike_sa_t *this, logger_t *logger, char *name)
 	{
 		logger = this->logger;
 	}
-	logger->log(logger, CONTROL|LEVEL1, "\"%s\": IKE_SA in state %s, SPIs: %llx %llx",
+	logger->log(logger, CONTROL|LEVEL1, "\"%s\": IKE_SA in state %s, SPIs: 0x%.16llx 0x%.16llx",
 				name,
 				mapping_find(ike_sa_state_m, this->current_state->get_state(this->current_state)),
 				this->ike_sa_id->get_initiator_spi(this->ike_sa_id),