&Printer Beta Version 1.39 available for beta test.  (will take some time until Google

#GCodeSimulator&Printer Beta Version 1.39 available for beta test. (will take some time until Google has published it).
All #GCodeSimulator&Printer community members can opt-in to get the beta version. Just opt-in here:
https://play.google.com/apps/testing/de.dietzm.gcodesimulatorprinter

Changes:
Backport of Stopbit fix for CDC-ACM Serial Driver (Arduino Uno, Mega,…)
This hopefully reduces the communication errors with CDC ACM devices.
Added number of read calls to debug output.