Relay Futusome API error messages to user

<a href="https://github.com/aasitus"><img src="https://avatars3.githubusercontent.com/u/6010477?v=3" align="left" width="96" height="96" hspace="10"></img></a> **Issue by [aasitus](https://github.com/aasitus)**
_Tue Mar 21 12:36:31 2017_
_Originally opened as https://github.com/HIIT/hybra-core-2/issues/32_

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