Now, Ajax will be used first, and will fall back to IFrame if JS is disabled,
and a separate page if on a text or mobile browser.
Also, /home and /console (and everywhere) now all have the same summary bar
content, which currently defaults to the original full listing.
Note: this now refreshes along with the rest of the sidebar, so the news.xml
file is read once every 15s - it may be better to cache the headings somewhere,
though it's debatable whether reading the cache file is better than reading the
news.xml file...
