Up until now, in order to build docs, we required Python 2. This wasn't

be any decision -- we just had syntax errors and string type issues in

our conf.py and extension.
This change fixes up those small issues, letting us fully build docs

successfully on both Python 2 and 3. It also brings the configuration

up to current standards, using the correct author, copyright, and theme

information.

Built all the docs using Python 2 and 3. Verified that they built

successfully.