Have all unit tests import from our own subclass of trial's unittest TestCase; set up logging in ONE PLACE ONLY
Allow a TestCase to set a 'loglevel' attribute, which overrides the logging level while that testcase runs
Define a (class) decorator for easily setting a DEBUG logging level on a TestCase
Additionally look first for a 'loglevel' attribute on the running test method, before the TestCase
Add some docstrings