[refactor] Change errors EOF to Behavioural in readwriter
[refactor] Change errors EOF to Behavioural in readwriter

LoRaWanSoFa/ttn,mgranberry/ttn,TheThingsNetwork/ttn,TheThingsNetwork/ttn,jvanmalder/ttn,LoRaWanSoFa/ttn,TheThingsNetwork/ttn,jvanmalder/ttn,mgranberry/ttn,mgranberry/ttn,jvanmalder/ttn