Potential for humidity value reported above 100%?

[caternuson]

Speculative, but looks like this:
adafruit/Adafruit_Si7021#10
could happen here as well. Same general math being done with no bounds checking.

[ladyada]

yah - if you wanna add a min/max bounds, go ahead - seems like it only happens in very very wet conditions :D

[caternuson]

Fixed by #12