fix leak on shutdown created because of missing to delete new stream class on shutdown

src/server.c

@@ -82,6 +82,7 @@ serverDtor(void * _this)
 		if (this->sock->handle != (this->fds)[i].fd) {
 			delete((this->conns[(this->fds)[i].fd]).sock);
 			delete((this->conns[(this->fds)[i].fd]).worker);
+			delete((this->conns[(this->fds)[i].fd]).stream);
 		}
     }