Tracker - more cleanup, added the jump distance to the jump button

Bit more cleanup under the hood. There are parts that are a bit more complicated than I like - sometimes I apparently develop in a stream of conscious sort of way.  But I am at least unifying the UI a bit.

I've also added the jump distance to the jump button on the list of systems in range.  Just so you know at a glance how far away they are.  And now I am thinking I could add the jump map there...

What I really need is someone to side load this & give me feed back. Sort of going in circles.  If anyone is interested, I'll create the new installers for Windows 10 and post them.