18.5: New option to add waypoint descriptions to recent list or not (on by default). Added 1 metre tracklog spacing option. Moved show/hide offline map option closer to top of menu. Removed MapQuest tile server URLs at install time since no longer active. Capitalise offline map names. Bug fixes.

18.4: Added recent descriptions button when adding new waypoint. Backup waypoints before deleting waypoints and/or tracklogs as well as when exiting the app. Cancel GPS updates properly when closing app.