Added recursion into library blend files.

tests/abstract_test.py

@@ -7,7 +7,9 @@ class AbstractBlendFileTest(unittest.TestCase):
     @classmethod
     def setUpClass(cls):
         cls.blendfiles = pathlib.Path(__file__).with_name('blendfiles')
-        logging.basicConfig(level=logging.INFO)
+        logging.basicConfig(
+            format='%(asctime)-15s %(levelname)8s %(name)s %(message)s',
+            level=logging.INFO)
 
     def setUp(self):
         self.bf = None