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Version 1.0.3 - Catch locked database condition. Added SD card required. Warn and exit if no SD card found.
Version 2.0.0 - Changed the database helper to a singleton. Exit after the initial data load routine, to allow a clean load of the database.
Version 2.1.0 - Fix program close on orientation change.
Version 2.1.1 - Stations were not being properly removed.
Version 2.1.2 - Removed SD card requirement. Only needs writable storage.