20.0: (1) Added a "reference set" option
on main page menu to show waypoints and tracklogs from other files
on the map pages, without loading them into the working set. (2)
Improvements to appearance of main page. (3) Require device to have
a GPS before installing this app.
19.8: Show message when app is still
using old data model. Option to play sound when GPS fix acquired
and when lost.