 - Click-and-drag doesn't work for X11 mouse report overriding

 - Speed-up screen refreshes

 - Add X11 mouse highlighting mode?

 - Make a standalone Tek window

 - Add a simple, robust, cheap method of allowing user definition of keys

 - Better resizing mechanism to avoid truncating lines would be nice.
 
 - Still fighting to get a selected region properly cleared, consistently.

 - with NEW_WRAPTYPE, the final line (if wrapped) is inadvertently marked as
   being non-wrapped which means it'll get pasted back as two separate lines
   rather than as a single wrapped line. 
