[Zope] - Product API tutorial updated

[Amos Latteier]

Hi guys:

I've got a new version of the Product API Tutorial on-line at:

http://www.zope.org/Documentation/Reference/Tutorial

So now you can read it without downloading the whole thing. Of course, you
can still download it along with sample files and a completed sample
Product at:

http://www.zope.org/Documentation/Reference/ProductTutorial.tar.gz

The tutorial has been updated a little to clean up language and add some
discussion of project requirements and analysis, and now comes with an HTML
as well as a text version.

I'm still looking for criticism, so send it on in.

Have fun, and have a happy new year!

-Amos