Set up the build logs to use our fake build logs on test and local.

util/dynamic.py

@@ -0,0 +1,7 @@
+def import_class(module_name, class_name):
+  """ Import a class given the specified module name and class name. """
+  klass = __import__(module_name)
+  class_segments = class_name.split('.')
+  for segment in class_segments:
+    klass = getattr(klass, segment)
+  return klass