shikokuchuo/nanonext: nanonext 1.5.2

Updates

• write_cert() argument 'cn' now defaults to '127.0.0.1' instead of 'localhost'.
• messenger() now exits cleanly, correcting a regression in nanonext 1.5.0 (#87).
• Promises created from 'recvAio' and 'ncurlAio' now reject in exactly the same way whether or not they were resolved at time of creation (#89).
• Bundled 'libnng' updated to 1.10.2 pre-release.
  • With this library version, a 'req' socket with option 'req:resend-time' set as 0 now frees the message as soon as the send has completed without waiting for the reply.