Improve `get/set_user_version()` functions
Improve `get/set_user_version()` functions

coinwarp/dogeparty-lib,CounterpartyXCP/counterparty-lib,monaparty/counterparty-lib,tokenly/counterparty-lib,stefcrypto/counterparty-lib,F483/counterparty-lib,jarymoth/counterpartyd,CounterpartyXCP/counterparty-lib,monaparty/counterparty-lib,F483/counterparty-lib