* More cleanups of unused imports throughout relax.
* Fixes and expansion of the test_suite.unit_tests._lib package __all__ list.
* Fixes and improvements to [https://gna.org/users/varioustoxins Gary Thompson's ] unit_test_runner.py script. The printouts have been improved and the script can now handle more than 3 levels of directories for a package.
* The unit_test_runner.py script now defaults to verbose mode.
* More cleanups of the unit_test_runner.py script.