GlucoseHUD does not use trend values from share.

[ps2]

The share client does make trend values available (encoded as an int, so some transformation is necessary) in the ShareGlucose struct.

DataManager should keep track of the most recent value, to be usable by the GlucoseHUD to display trend.

[ps2]

Mapping of values:
https://github.com/nightscout/share2nightscout-bridge/blob/master/index.js#L44-L55