Event List Editor Testing Appreciated

   I just pushed a massive cleanup of the Event List editor.  Does 
anyone use this a lot?  If so, please test latest git and make sure I 
haven't broken anything.  It should be mostly improvements.

   To get to the event list editor: Select a segment in the main window 
and press E.

   Still have a lot more work to do, but I figure it's a good time to 
get this out to maximize testing before the June release.

   This work is related to feature request 467, adding support for RPNs 
and NRPNs.

Ted.