+ Moved IDLE from the "tools" component to the main component.

+ Moved IDLE from the "tools" component to the main component.
+ Ditto pydoc.
  (IMO, both should have been done long ago -- simply didn't occur to
   me before)
+ Build the summary text into a vrbl instead of a temp file.  Doh!  Less
  fiddling, and should avoid another class of Win2K permission problems.
Bug:  the "auto vertical scrollbar" control on the summary page doesn't
work (never creates a scrollbar, no matter how much text).  So forced a
vertical scrollbar there.