miniupnpd: 2.0 -> 2.0.20171212 (fixes CVE-2017-1000494)

changelog since the last version bump:

  2017/12/12:
    Fix a few buffer overrun in SSDP and SOAP parsing

  2017/11/02:
    PCP : reset epoch after address change

  2017/05/26:
    merge https://github.com/miniupnp/miniupnp/tree/randomize_url branch

  2017/05/24:
    get SSDP packet receiving interface index and use it to check if the
      packet is from a LAN

  2017/03/13:
    default to client address for AddPortMapping when <NewInternalClient>
      is empty
    pass ext_if_name to add_pinhole()

  2016/12/23:
    Fix UDA-1.2.10 Man header empty or invalid

  2016/12/16:
    Do not try to open IPv6 sockets once it is disabled

  2016/12/01:
    Fix "AddPinhole Twice" test

  2016/11/11:
    fixes build for Solaris/SunOS

  2016/07/23:
    fixes build error on DragonFly BSD