- Allow saving of calibration only if a calibration is active (no more
calibration files that "don't do anything" when they are opened)
- Delete old measurements when loading a new calibration file
- Update calibration when a measurement is updated (no need to disable
and enable again)
- Disable calibration when a required measurement is deleted
- Improved device communication (callbacks for transmissions working properly now)
- Honor averaging when calibrating
- Ignore delayed points from last sweep during calibration
- Stop the sweep when disconnecting
