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/BaseHTTPServer.py

@@ -63,6 +63,7 @@ XXX To do:
 
 __version__ = "0.2"
 
+__all__ = ["HTTPServer", "BaseHTTPRequestHandler"]
 
 import sys
 import time