Fix units rounding in sensor offset. Various other improvements.

Fixed rounding error on sensor offset when units are changed and other improvements.

Version 1.3.8
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Fixed a bug that caused the barometric pressure information acquisition service, which does not use location information, to fail to run after restarting.

Fix pressure sent twice to UDP output

Fix an issue accessing the barometer in iOS 17.4

Added option to keep screen on and improved graph display.

New features include improved reading of individual points on the graphs, ability to accumulate data when the app is running in the background, and the option to share pressure and navigation data wirelessly to nearby devices, plus a full French rendition within the app.

New features include improved reading of individual points on the graphs, ability to accumulate data when the app is running in the background, and the option to share pressure and navigation data wirelessly to nearby devices.

Adjust for latest iOS and add data accumulation while app is in the background.

Added export track of past GPS positions as a GPX file.

Fixed data export from an iPad