2012-02-22 moel.mich Fixed a division by zero in the Sandforce write amplification sensor.
2012-02-22 moel.mich Added a simple way to customize the sensor gadget background. If any of the files gadget_background.png, gadget_image.png, gadget_foreground.png, gadget_bar_background.png or gadget_bar_foreground.png is present in the working directory then these files are used instead of the built in files.