message: Change mainnet address version.
  Prefix 38 (G) for P2PKH.
  Prefix 90 (d) for P2SH.
diff: @@ -157,8 +157,8 @@ public:
  vSeeds.emplace_back("seed.bitcoin.jonasschnelli.ch", true); // Jonas Schnelli, only supports x1, x5, x9, and xd
  vSeeds.emplace_back("seed.btc.petertodd.org", true); // Peter Todd, only supports x1, x5, x9, and xd
  - base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,0);
  - base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,5);
  + base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,38); // prefix: G
  + base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,90); // prefix: d
  base58Prefixes[SECRET_KEY] = std::vector<unsigned char>(1,128);
  base58Prefixes[EXT_PUBLIC_KEY] = {0x04, 0x88, 0xB2, 0x1E};
  base58Prefixes[EXT_SECRET_KEY] = {0x04, 0x88, 0xAD, 0xE4};
  