Another News System Update

[brian]

This update completes the most critical pieces of the new news system. Your settings are now saved. Any options configurable in the news system will be saved in cookies on your computer. Category filtering now re-queries the database to return as many matching articles within your limit as possible. For example, if you want to view 25 articles only from World. The new system will query the top 25 World articles. The old one would have only displayed the World articles out of the top 25 of all articles (maybe 2 or 3). The new system also respects that an article may be in multiple categories, such as a Top Story and a US article. This along with minor bug fixes and performance enhancements... the news system is better than ever!