73abaf04b1372fa4c43201fb1b8019fe6b0a6f8d, move from into transaction object in signTransaction. This
makes the accounts_signTransaction identical to the old eth_signTransaction.Initial release.
The API uses semantic versioning.
TLDR; Given a version number MAJOR.MINOR.PATCH, increment the:
Additional labels for pre-release and build metadata are available as extensions to the MAJOR.MINOR.PATCH format.