add BIP30 exceptions
add BIP30 exceptions

  bitcoind commit: ab91bf39b7c11e9c86bb2043c24f0f377f1cf514
    Apply BIP30 checks to all blocks except the two historic violations.

Zlerp/bitcoin-ruby,tarix/bitcoin-ruby,robertg/bitcoin-ruby,xiumiao/bitcoin-ruby,mhanne/bitcoin-ruby,bitpesa/bitcoin-ruby,georgemillo/bitcoin-ruby,assafshomer/bitcoin-ruby