GDSG Updates

["Eugene O'Connor" <Eugene Oconnor Sun COM>]

I've updated the GDSG as follows:

   * Added new terms: 
     - GNOME Desktop Terms: assistant, criterion, flag, folderbar, roll
down, roll up, searchbar, virtual folder.
     - User Actions: display, show.
     - General Computer Terms: antialias, blind-copy, emoticon, Help,
reply-to address, spam, spellchecker, strikethrough, symbolic link,
thread.
  
   * Modified following terms: 
     - GNOME Desktop Terms: desktop, desktop background, desktop
environment, Desktop menu, desktop object, GNOME Desktop.
  
   * Deleted following terms: 
     - GNOME Desktop Terms: desktop theme, shade (replaced with roll
up), shade hover, unshade(replaced with roll down).

	Also, general updates throughout the guide, so that new definitions of
desktop-related terms are used consistently throughout the GDSG, added
new links to some wordlist terms, fixed minor nits.

Eugene