fix issuance.validate return
Merge pull request #269 from JahPowerBit/develop

fix issuance.validate return
add event arg for all util.debit/credit
maj tests for previous commit
force destination to be first output; comment
Merge pull request #274 from JahPowerBit/develop

add event arg for all util.debit/credit
Merge branch 'develop' into multisig