Release 4.4: Add humanfriendly.testing.{make_dirs,touch} functions

Release 4.3: Don't log duplicate output in run_cli()

Release 4.2: Reconfigure logging in run_cli()

Release 4.1: Always log stderr as well in run_cli()

Release 4.0: Improve humanfriendly.testing.run_cli() (backwards incom…

…patible)

Release 3.8: Make it easy to mock the $HOME directory

Release 3.7: Customizable skipping of tests

Release 3.6.1: Improve robustness of Patched{Attribute,Item}

Release 3.6: Make retry limit configurable

Release 3.5: Enhance TestCase.assertRaises()