ABI encoding is out of date

[alex-miller-0]

This library is using ethereumjs-abi, which does not support the newer ABI_V2 spec and has been deprecated as a result: https://github.com/ethereumjs/ethereumjs-abi/issues/86

ABI_V2 changed the way bytes and string params are encoded and I know from personal experience that ethereumjs-abi does not decode newer messages properly. I don't know if the encoding side will work or not, but I would suggest considering a move to ethers if this repo is still in development.

[deanshelton913]

This is a legit problemo.