[refactor] Wait for connections before to start before launching test suite in http_test
[refactor] Wait for connections before to start before launching test suite in http_test

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