Changes to grafana page and add timeout to scraper #4
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Change the grafana page to show the change in Corrected and Uncorrectables instead of the total numbers. The change is the non-negative difference between the most recent values. This is more useful because if an internet connection is unstable, users will want to see how the errors are fluctuating, not the total numbers.
Add a time out to requests.get() to prevent the scraper from hanging if the webpage is non-responsive.