netrik 0.20 released

This new release features HTTP redirects.

Probably it's even a bit to eager about that, and it may not do exactly the
right thing always, so it might turn out to be of limited usefulness... But at
least you can go to netrik.sf.net now, don't need to spell out sourceforge ;-)
Well, OK, serveral other sites do work too :-)

As mentioned before, we will have to change the HTTP parsing, to allow graceful
error handling; but that's probably the last thing to do before 1.0 alpha :-)