[m-rev.] For review: Refactor clean Mmake targets in doc/

[Julien Fischer]

On Sat, 5 Oct 2013, Paul Bone wrote:

> For review by anyone
>
> Branches: master
>
> Refactor clean Mmake targets in doc/
>
> doc/Mmakefile:
>    Refactor the clean targets in the doc/ directory.  Now it is very clear
>    that the 'realclean' and 'distclean' targets do the same thing, and
>    'distclean' is only removes a few additional things than 'clean' does.
>
>    This will reduce the chance of problems similar to the one affecting the
>    table of contents' in the PDF documents.

That looks fine.

Cheers,
Julien.