display help instead of crashing
Point setuptools back to petertodd's version of python-bitcoinlib. Use jimmysong's branch of pycoin until his testnet pull request is accepted.
Missed that Jimmy did his work in a branch, not master. Fixed.
Merge pull request #37 from arichnad/master

display help instead of crashing
Merge pull request #38 from Ademan/master

Change where setuptools looks for packages to reflect current events.