ChangeLog rotation and copyright year update

[Joel Brobecker]

> (What I'd really like is no ChangeLog files, instead generating them
> automatically from git commit logs for a release, but that is probably
> a bit too radical.)

You have my vote on this one, and I'd happy to help enhancing
our hooks to make sure all revision logs follow whatever format
we want to make those CL entries easily extractable.

-- 
Joel