fix Script#pay_to_script_hash chunk casting
update examples/generate_tx.rb
fix Parser#parse_headers

  when the tx size is > 252 then the block header is not 81 bytes but 80 + pack_var_int(tx_size)
bump version

  release the first gem to rubygems. (this one finally overwrites the very old gem that was pushed there by samphippen)
Added OpenSSL support to Windows

Change windows check
reject invalid signatures in OP_CHECKSIG

fixes issue with validating a6ce7081addade7676cd2af75c4129eba6bf5e179a19c40c7d4cf6a5fe595954