! Backwards compatibility warning
4.0 marks the end of our support for Python 2.4 and 2.5. The oldest OS we
support is now RHEL 6, and it uses python 2.6.
* Optinally verify SSL certificates, when using python 2.7.9 or newer
* Add some more new methods and fields and fix some misspelings in other fields
* profile_desc_download now actually works
* The ssh key uploader now supports RSA SSH keys
* Our exceptions now work properly under python 3