Rename to gpiozero and tidy up

gpiozero/output_devices.py

@@ -0,0 +1,25 @@
+from RPi import GPIO
+
+
+class OutputDevice(object):
+    def __init__(self, pin):
+        self.pin = pin
+        GPIO.setup(pin, GPIO.OUT)
+
+    def on(self):
+        GPIO.output(self.pin, True)
+
+    def off(self):
+        GPIO.output(self.pin, False)
+
+
+class LED(OutputDevice):
+    pass
+
+
+class Buzzer(OutputDevice):
+    pass
+
+
+class Motor(OutputDevice):
+    pass