* Implemented the news fetch / update policy code, as configurated on
      /configupdate.jsp.  Defaults are to grab the news every 24h (or if it
      doesn't exist yet, on startup).  No action is taken however, though if
      the news.xml specifies that a new release is available, an option to
      update will be shown on the router console.
    * New initialNews.xml delivered with new installs, and moved news.xml out
      of the i2pwww module and into the i2p module so that we can bundle it
      within each update.