v0.3.0

Added

• serial data downloader (download data)
• serial data uploader (upload data)
• instrument settings saver (download settings)
• instrument settings loader (upload settings)
• terminal was extended with new settings:
  • baud
  • timeout

Changed

• all package dependencies now have their minimum compatible version specified

Fixed

• the connection test function in the terminal app did not work properly
  with GSI Online DNA protocol