[svn] Reworded the opening paragraph to reflect that there are now more developers

[svn] Reworded the opening paragraph to reflect that there are now more developers
besides Hrvoje, and added the following three items I've been meaning to get to:

* Make -K compare X.orig to X and move the former on top of the latter if
  they're the same, rather than leaving identical .orig files laying around.

* Add an option to save all text/html files with a .html extension so that when
  grabbing the output of a dynamically-generated remote page, you'll end up with
  a filename that will cause _your_ webserver to realize the saved static HTML
  file isn't text/plain.

* Allow mirroring of FTP URLs where logging in puts you somewhere else besides
  '/'.