Average data usage widget

Nov 7, 2018

V 1.4
- Increased precision of the progress bars
- When the usage is >100%, the progress bar shows how much instead of stop at 100.

V 1.3
-Fixed negative numbers when 'first day' is set different to 1
-[BETA] New widget: Rate. Shows the rate between the bars. Try to keep it slightly below 1.