ANN: M2Crypto 0.18.2

[Heikki Toivonen]

M2Crypto is the most complete Python wrapper for OpenSSL featuring RSA,
DSA, DH, HMACs, message digests, symmetric ciphers (including AES); SSL
functionality to implement clients and servers; HTTPS extensions to
Python's httplib, urllib, and xmlrpclib; unforgeable HMAC'ing
AuthCookies for web session management; FTP/TLS client and server;
S/MIME; ZServerSSL: A HTTPS server for Zope and ZSmime: An S/MIME
messenger for Zope.

http://chandlerproject.org/Projects/MeTooCrypto

Changelog:

- typedef Py_ssize_t was insufficiently guarded, now follows PEP 353.
This prevented building on at least Red Hat Linux and Debian Linux
(unstable).