* Handle old versions of coverage.
* Handle old versions of setuptools.
* Detect python version for docker/remote units.
* Add sanity override for test constraints.
- Tests are run to completion instead of stopping on first failure.
- Test results are now parsed instead of passing through to the console.
- Test results can be saved in junit xml format.
- Test results will show up on the Shippable "Tests" result tab.
- Added an experimental --lint option for easier integration with other tools.
- Code smell tests are now usable with the --list-tests, --test and --skip-test options.
- Code split out from executor.py into sanity.py.
- Rename download-logs to download.py and add support for test and coverage results.
- Miscellaneous improvements.
* Skip pep8 analysis when --explain is used.
* Fix return type annotations.
* Match line length requirement of PEP 8 config.
* Consider module_utils deps when running tests.
