message: net: make it possible to connect to CJDNS addresses
  Connecting to CJDNS addresses works without a proxy, just like
  connecting to an IPv6 address. Thus adapt `CService::GetSockAddr()` to
  retrieve the `struct sockaddr*` even for `CService::IsCJDNS()` objects.
diff: @@ -663,7 +663,7 @@ bool CNetAddr::GetInAddr(struct in_addr* pipv4Addr) const
  }
  /**
  - * Try to get our IPv6 address.
  + * Try to get our IPv6 (or CJDNS) address.
  *
  * @param[out] pipv6Addr The in6_addr struct to which to copy.
  *
  @@ -674,7 +674,7 @@ bool CNetAddr::GetInAddr(struct in_addr* pipv4Addr) const
  */
  bool CNetAddr::GetIn6Addr(struct in6_addr* pipv6Addr) const
  {
  - if (!IsIPv6()) {
  + if (!IsIPv6() && !IsCJDNS()) {
  return false;
  }
  assert(sizeof(*pipv6Addr) == m_addr.size());
  @@ -993,7 +993,7 @@ bool CService::GetSockAddr(struct sockaddr* paddr, socklen_t *addrlen) const
  paddrin->sin_port = htons(port);
  return true;
  }
  - if (IsIPv6()) {
  + if (IsIPv6() || IsCJDNS()) {
  if (*addrlen < (socklen_t)sizeof(struct sockaddr_in6))
  return false;
  *addrlen = sizeof(struct sockaddr_in6);
  