add the first real checkpoint (and checkpoint cleanup)
add the first real checkpoint (and checkpoint cleanup)

united-scrypt-coin-project/unitedscryptcoin,united-scrypt-coin-project/unitedscryptcoin,zebrains/Blotter,united-scrypt-coin-project/unitedscryptcoin,united-scrypt-coin-project/unitedscryptcoin,united-scrypt-coin-project/unitedscryptcoin,zebrains/Blotter,zebrains/Blotter,zebrains/Blotter,zebrains/Blotter