[merge] add 'make dist' and related things, and documentation to use them

[Martin Albisetti]

On Wed, Apr 9, 2008 at 1:34 AM, Martin Pool <mbp at canonical.com> wrote:
>  It is in NEWS; it's just that because 'M'<'N' it is not at the head of
>  the patch.  Should there be more explanation?

I was thinking about the script addition to the Makefile, as it seems
like a rather important addition to the release process.

I might be wrong, it was just something I found interesting and didn't
see it in NEWS   :)