Bugfix header EEPROM layout: Batterycharge was added to the header memory structure which is also used to store data in EEPROM => Information read from EEPROM which were created before the change was not read out correct. To avoid this problem and to keep the layout consistent a not used data item has been changed to the new batterycharge value

Heinrichs Weikamp OSTC4 update files.

The builds are for testing purposes only. Be careful, they might not work and are definitely not recommended for real dives.