Help from someone with new PKWare zip program

[Scott David Daniels]

PKWare has specified a new compression method (ZIP_BZIP2=12) for .zip
files.  This format provides (or can provide) very good compression.
Since python now has the bz2 module, I thought I'd try to teach the
zipfile module to read and write ZIP_BZIP2 compression as well as its
current ZIP_DEFLATE format.

If there is somebody out there with a copy of the PKWare program,
I'd like a small ZIP file compressed with that format, in order to
verify that I correctly produce / consume such files.  Once I trust
my code is correct, I'll release it.

-Scott David Daniels
Scott.Daniels at Acm.Org