This looks good, except for the change to timezone/README:

> +Please check the ChangeLog files in ChangeLog.old directory at the top level
> +for the version of the tzcode and tzdata packages.

It's awkward to have to paw through ChangeLog.old for version numbers, 
plus when I took the trouble to actually do that I found that the 
version numbers there were incorrect. So I propose the attached patch 
instead.