ensures that pubKey length is greater than m
ensure that pubKey length is greater than m

use Array.isArray over instanceof

error message
Merge pull request #198 from thallium205/master

ensure pubkeys length greater than m
tests: fix #198 indentation
integration: stop async tests causing wrong balance
integration: use Script.getHash
Merge pull request #196 from dcousens/intasync

Integration tests running async causing wrong balance