Call for dsource tutorials upgrade

[jcc7]

== Quote from Saaa (empty at needmail.com)'s article
> >
> > I guess you're thinking of a different kind of tutorials than me,
> > then. I'd think at least you'd need writefln/Stdout at some point
> > in your tutorials.  I would think how to use writefln/Stdout would
> > even be the subject of one of the first few tutorials.
> >
> > --bb
>
> I would suggest using phobos by default as it is the standard
> library and adding tango to the category if  it is used instead.

Since the tutorials project began before the Tango project began, there's already
an established pro-Phobos bias. ;)

I looked into creating some examples that would work for Phobos and Tango (using
version(Tango)), but it was harder to do than I thought it would be, so I don't
think I ever added any pages based on my efforts.


> Anybody starting off would see phobos as the std.
> (I did :) and still do btw. whether tango is better or not.

I'm not against people adding Tango examples to the Tutorials project, but they
should include a mention of Tango (something like "Tango is required").

It's helpful to mention which combination of compiler version/library version it's
been tested with so that if breaks, future users will have a clue as to why it broke.