Module to execute powershell on Octopus Deploy server

This is not a bug, but a feature which gives users with the correct
permissions the ability to take over a host running Octopus Deploy.

During an automated deployment initiated by this module, a powershell
based payload is executed in the context of the Octopus Deploy server,
which is running as either Local System or a custom domain account.
This is done by creating a release that contains a single script step
that is run on the Octopus Deploy server. The said script step is
deleted after the deployment is started. Though the script step will
not be visible in the Octopus Deploy UI, it will remain in the server's
database (with lot's of other interesting data).

Options for authenticating with the Octopus Deploy server include
username and password combination or an api key. Accounts are handled
by Octopus Deploy (stored in database) or Active Directory.

More information about Octopus Deploy:
https://octopus.com

Author: james-otten