message: Fix DNS seeds
diff: @@ -135,7 +135,7 @@ public:
  assert(genesis.hashMerkleRoot == uint256S("0xed34050eb5909ee535fcb07af292ea55f3d2f291187617b44d3282231405b96d"));
  // Note that of those with the service bits flag, most only support a subset of possible options
  - vSeeds.push_back(CDNSSeedData("qtum3.dynu.net", "qtum3.dynu.net")); // Qtum mainnet
  + vSeeds.emplace_back("qtum3.dynu.net", false); // Qtum mainnet
  base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,58);
  base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,50);
  @@ -231,7 +231,7 @@ public:
  vFixedSeeds.clear();
  vSeeds.clear();
  // nodes with support for servicebits filtering should be at the top
  - vSeeds.push_back(CDNSSeedData("qtum4.dynu.net", "qtum4.dynu.net")); // Qtum testnet
  + vSeeds.emplace_back("qtum4.dynu.net", false); // Qtum testnet
  base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,120);
  base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,110);
  