Applying patch #100994 to allow JPython to use more of the standard
Python test suite.  Specifically,

- import time instead of strop in test_b1

- test for ClassType of exceptions using isinstance instead of
  equality in test_exceptions

- remove __builtins__ from dir() output in test_pkg

test_pkg output needs to be regenerated.
diff --git a/Lib/test/test_exceptions.py b/Lib/test/test_exceptions.py
index 06861df..7ee203c 100644
--- a/Lib/test/test_exceptions.py
+++ b/Lib/test/test_exceptions.py
@@ -19,7 +19,7 @@
 
 def r(thing):
     test_raise_catch(thing)
-    if type(thing) == ClassType:
+    if isinstance(thing, ClassType):
         print thing.__name__
     else:
         print thing