FI and fixes for tests

.gitignore

.travis.yml

Pipfile

Pipfile.lock

config.example.yml

config.schema.yml

pi_mqtt_gpio/__init__.py

pi_mqtt_gpio/__init__.py.template

pi_mqtt_gpio/modules/__init__.py

pi_mqtt_gpio/modules/lm75.py

pi_mqtt_gpio/modules/pcf8574.py

pi_mqtt_gpio/modules/piface2.py

pi_mqtt_gpio/modules/raspberrypi.py

pi_mqtt_gpio/modules/stdio.py

pi_mqtt_gpio/server.py

pytest.ini

requirements.txt

setup.cfg

setup.py

tests/test_server.py