Call for dsource tutorials upgrade

[jcc7]

== Quote from Bill Baxter (dnewsgroup at billbaxter.com)'s article
> Saaa wrote:
> > With all the different design possibilities of D I find looking
> > through code (from others) especially useful.
> >
> > The first place I always go to is dsource tutorials and thus love
> > to see it expanded.
> > Maybe see D1 and D2 seperated?
>
> Maybe D1|Phobos, D1|Tango, D2, actually.
>
> --bb

Actually, I don't know if there's any D2 or Tango code in there (though I suppose
some of "less useful" examples would comply in any situation), but you're right
it'd be better if the compiler versions and needed libraries were indicated for
every example.

I've added some of that compiler/library version information to older entries (and
I try to include that information with new entries), but I confess it's not
something that I really enjoy doing. Everyone is welcome to help improve the wiki
pages. (Any registered dsource user should be able to edit the Tutorial wiki.)