message: Add mainnet DNS seed hosted by 7server.net
  Please contact TheSeven in case of any issues/outages.
diff: @@ -1210,6 +1210,7 @@ static const char *strMainNetDNSSeed[][2] = {
  {"seed", "seed.ppcoin.net"},
  {"seed2", "seed2.peercoin.net"},
  {"libraryseed", "seed.peercoin-library.org"},
  + {"7serverseed", "ppcseed.ns.7server.net"},
  {NULL, NULL}
  };
  