Remove Lua state reference from buffers in lua_cmsgpack.
Remove Lua state reference from buffers in lua_cmsgpack.

louisliangjun/redis,ramonsnir/redis,splitice/redis,louisliangjun/redis,maodeyi/redis_lua,splitice/redis,maodeyi/redis_lua,louisliangjun/redis,ramonsnir/redis,maodeyi/redis_lua,splitice/redis,splitice/redis,louisliangjun/redis,ramonsnir/redis