added __all__ lists to a number of Python modules

added test script and expected output file as well
this closes patch 103297.
__all__ attributes will be added to other modules without first submitting
a patch, just adding the necessary line to the test script to verify
more-or-less correct implementation.

Lib/Cookie.py

@@ -228,6 +228,8 @@ try:
 except ImportError:
     raise ImportError, "Cookie.py requires 're' from Python 1.5 or later"
 
+__all__ = ["CookieError","BaseCookie","SimpleCookie","SerialCookie",
+           "SmartCookie","Cookie"]
 
 #
 # Define an exception visible to External modules