* Simplify find_cases
* Improve help text
* Improve YAML-capturing regex
* Use built-in dedenting
* Fix use of built-in dedenting
* Fix use of built-in dedenting for Python 3
* Generation: Use Python 3-compatible imports.
* Generation: Use range() instead of xrange().
* Generation: Use list comprehensions instead of map().
* Generation: Explicitly use bytes in the Test class.
* Generation: Run unit tests on Python 3 as well.