rnews 0.90 released

This release has a raft of new features, bug fixes, and performance improvements. It's definitely the best Rnews, yet. Thanks to everyone who contributed ideas and bug reports!
* Feeds are scored using personalized statistics, one- and two-column block views are more flexible, keyword search is supported, heuristics try to fix broken feeds, and feeds may be added using bookmarklets or a Firefox extension.
* New user options were added for keeping stats, expanding articles in single-feed view, and opening links in a new window.
* Rnews received a styling upgrade, with rollover icons and more AJAX interaction.
* IP-locked cookies are now optional (though recommended).
* Many bug fixes, in caching, IE presentation, redirects, and elsewhere.

Database structure has changed, but there is now an automatic upgrade process (from 0.8x only). See instructions and other details at our homepage: http://rnews.sourceforge.net/