Various sorts of media files to experiment with as mail attachments (or try your own).

See also 
   ..\TempParts, where clicked email parts' files are automatically saved on open.
   Becuase this is now a self-cleaning folder, its original version shipped with 
   book PP4E, with additional media, is available in this package's top-level 
   docetc/examples/TempParts-original.zip.

See also 
   ..\sentmail.txt for the default sent-mail save file, and ..\SavedMail for 
   example saved-mail files to Open in the GUI.

ICONS HAVE MOVED: the icons folder has been moved to the "docetc" folder in the root
of this package, as some of its images are used in the main HTML document.