I write Lua binding to ZeroMQ3. And i have 2 question: 1. Do i need close message after send/move. Manual says: `The zmq_msg_t structure passed to zmq_msg_send() is nullified during the call`. But do that mean I have to call zmq_msg_close? 2. zmq_ctx_destroy in libzmq (3.3.0) marked as `Old (legacy) API` Manual has nothing about zmq_ctx_term.