Merge pull request #457 from JahPowerBit/develop

skip unconfirmed tx from jmcorgan searchrawtransactions
Merge pull request #460 from JahPowerBit/develop

256^8 too large to be packed
fixes + update testnet checkpoints
fix tests
typo
comment on naming
Merge pull request #461 from CounterpartyXCP/retrotestnet

protocol changes always retroactive on testnet
DecodeError
update changelog