[Ipopt] Metis

[Giacomo Nannicini]

Hi all,
it seems to me that the code in ThirdParty/Metis for getting Metis
does not work anymore: version 4.0 is no longer available from what I
gather, after the release of 5.0. This is a very recent change (new
version was released today, I believe).

Not sure if it's the Ipopt people that should have a look at
ThirdParty software, but Metis is a dependency of Ipopt in any case.

You may want to have a look. The modifications to do seem pretty
straightforward, only a couple of directory names have changed (most
notably, /Lib is now /libmetis).

Giacomo