1. move preferences to Feeds tab
2. update CAD comic with support for sillies
3. add support for loading updated/third-party filters from filters.local (would override bundled filters)
print "<p>".__('GoComics requires a specific URL to workaround their lack of feed support: <code>http://feeds.feedburner.com/uclick/<em>comic_name</em></code> (e.g. <code>http://www.gocomics.com/garfield</code> uses <code>http://feeds.feedburner.com/uclick/garfield</code>).')."</p>";
print "<p>".__('Drop any updated filters into <code>filters.local</code> in plugin directory.')."</p>";