[Nel] NeL Network Engine

[Vincent Caron]

I was more or less suggesting than the solution is not a matter of adopting
select() or not, but rather implies a deeper reflexion on the pb of service
scheduling... And being cross-platform doesn't mean being uniform, it would
be a shame to ignore each OS's specificity. An approach could be to get the
best implementation, say, for Linux and Windows, find out an abstract model
that unifies both and brings this into NeL. Here again, just a hint ...