Updated TODO.
Update docstrings for utils module.
Add docstring for version module.
Update version number 0.2alpha -> 0.3beta
Use a single point-of-control version number update.
Fix docstring missing backtick typo.
Run pep257 as part of the `test` target.
Add pep257 to the list of dependencies to be installed.
Update some missing docstrings.
Add documentation pages for the Test Code.