Added extern definitions for basic Python types

Ignore-this: 51aa2246c87a90b686fafb63f2aa5e13

darcs-hash:20090609141143-1e3d8-61e07efa9c93f8bb80faadcc7459e461c679991c
Moved sipsimple.clients.cpim to sipsimple.cpim

Ignore-this: 4b35a01f1c7509ab1997af8facae6d21

darcs-hash:20090611122349-1e3d8-1aaf94654005006e9099d7ce8251225174e04a2a