[Python-Dev] New mailbox module

[A.M. Kuchling]

Gregory K. Johnson, who's been working on the mailbox module in
nondist/sandbox/mailbox for Google's Summer of Code, thinks his
project is essentially complete.  He's added the ability to modifying
mailboxes by adding and removing messages, adding test cases for the
new features, and written the corresponding documentation.

So, it's time to start considering it for inclusion in the standard
library.  This is a big change to a non-obscure module, so don't feel
able to make this decision on my own.

I believe the code quality is acceptable, but would appreciate
comments on any cleanups that need to be made.  I still need to read
through the docs and make editing suggestions, and check that the code
is still backward-compatible with the old version of the module.

--amk