PyDSH 0.7 released

Released a new updated version. It's been a few years but it seemed like the right time for it. Thanks for the emails that got me motivated to do so.

This update completes the updates to Python 2.7 compatability started in release 0.6 and adds the ability to handle SSH public keys with passwords.

If anyone has any questions, just send me an email.

Thanks,

Dave