[Initial import, work in progress defining Cat
Matthieu Sozeau <mattam@mattam.org>**20080221205029] 
[Work on CAT, what's the right def of equality on cats and functors ??
Matthieu Sozeau <mattam@mattam.org>**20080222213754] 
[Split development in multiple files
Matthieu Sozeau <mattam@mattam.org>**20080224111509] 
[Add Make and env.el files
Matthieu Sozeau <mattam@mattam.org>**20080224111648] 
[dunno
Matthieu Sozeau <mattam@mattam.org>**20080621163939] 

[Port to 8.2 by Vilhelm Sjöberg <vilhelm@cis.upenn.edu>
Matthieu Sozeau <mattam@mattam.org>**20100204191118]