Important fix for the Fire Weather Index calculation (FWI), 10.37M build 08

Hi all
thanks to Ricky for finding the mistake in my calculations!
version 10.37M build 08 fixes the FWI calculations
the bug was that the code to calculate the rain total was resetting the 10 minute average temperature variable (i.e the temperature was being set to 0 basicly (or what the rain total was))
The fix is not retrospective, but after using the update, click on test a couple of times under view, FWI, and you will then see the FWI value jump up :slight_smile:

( I have just now updated the Mac and Linux version too)