First public alpha release of SAKnav

Hi developers

This is the first public release of SAKnav, the Swiss Army Knife of
Navigation. It's a alpha release, so expect the interfaces, download url
or just everything to change.

Python package, Zope product and some examples to download are available
currently at

http://testcms.ethz.ch/silva_ethz/dev/nav/

The tutorial examples on the website are applications based on Silva
Code Source, but possible fields of use range from Zope product
developers to layout implementers and code source designers.

Requires Python 2.3, tested with a freshly installed Silva 1.2.2.

Regards

Bengt