fix device name checks.

The device/host names for the devices running this program should be using 'galleryX' ('X' denotes the device number). I put 'factory' instead of gallery because I'm an idiot. 'factory' are the device names for the Light Meter project.

relay.py

@@ -11,9 +11,9 @@ GPIO.setup(relay_pin, GPIO.OUT)
 
 def get_api_url():
     # Yes, I know I could do this better. Stop moaning.
-    if (device_id == "factory1"):
+    if (device_id == "gallery1"):
         return "http://ritherdon.abbether.net/api/readings/add/1"
-    elif (device_id == "factory2"):
+    elif (device_id == "gallery2"):
         return "http://ritherdon.abbether.net/api/readings/add/2"
       
 # Make sure this is valid.