1.3.0
networks: prioritize bitcoin/testnet
1.3.1
remove base58check

Use bs58check package solely from here on.
rename Message to message
crypto: remove Hmac* exposure in API
crypto: re-work fixtures for simplicity
remove deprecated functionality
Transaction/TxBuilder: move all param coercion to TxBuilder
Transaction/RawTx: renames TxBuilder to Transaction
RawTransaction: re-order functions to project standard
RawTransaction: rename tmpTx to tx
tests: remove unnecessary test

This functionality is tested already through the fixtures.
add ECPair module
remove ECKey, ECPubKey, replace with ECPair
doc: no section headers