bzrlib.tests.inventory_implementations and bzrlib.tests.repository_implementations switched from test_suite() to load_tests().
* bzrlib/tests/__init__.py: (test_suite): bzrlib.tests.inventory_implementations and bzrlib.tests.repository_implementations moved from packages_to_test to testmod_names. Poor packages_to_test is now empty :)
* bzrlib/tests/repository_implementations/__init__.py: (load_tests): Preferred to test_suite().
* bzrlib/tests/inventory_implementations/__init__.py: (load_tests): Preferred to test_suite().