Release notes for Kaffelogic Nano 7 firmware

version 7.3.5 - 'heat too slow' detection modified to avoid false alarms
              - improve USB timeout settings to avoid reported memory stick issues
              - skip system and hidden files when loading profiles
              - allow zero-length short names
              - log the calibration data
              - suppress 'calibration reqd' message for Pledge Me machines (updater v 3 and 4)
              - don't reset level when entering calibration mode
              - fix small bug in string handling for version strings (trivial)
              - enhanced error reporting for USB to help debug memory stick problems
version 7.3.4 - implement calibration of voltage and fan speed including calibration mode for setting these values
              - fix bug where update message was interfering with restoring default profile