Notes about installation
The sshv2 plugin requires Paramiko, which in the past relied on the pycrypto library. As of Paramiko v2.0, the pycrypto library has been replaces with the Python Cryptographic Authority's cryptography library. While this is a good change overall, some systems may be lacking the required libraries.
This plugin will continue to use 1.17.0 for the near term, but will eventually switch to paramiko > 2, at which point it will be neccessary for users to upgrade their systems in order to install this plugin.
For information about the transition from 1.17.0 to 2.0 and the involved changes, please see http://www.paramiko.org/changelog.html