BME280 library CHANGED

[urs8000]

BME280 library https://github.com/finitespace/BME280 the NEW version changed and is not compatible with the published LoRaWAN_TTN_Env_Node.ino

[dadosch]

following changes seem to be necessary:

    temp = bme.temp();
    pressure = bme.pres();    // 1 = hPa (milliBar)
    humidity =  bme.hum();