Remove the attribute cache

- Class template creates instance vars for attribute file handles
- GetSet template uses new api for attributes
- Device code no longer uses attribute cache
- Use Python's super() function to handle __init__

Author: rhempel

ev3dev/brickpi.py

@@ -47,13 +47,12 @@ class Leds(object):
 
 # ~autogen led-colors platforms.brickpi.led>currentClass
 
-    blue_led1 = Led(name_pattern='brickpi1:blue:ev3dev')
-    blue_led2 = Led(name_pattern='brickpi2:blue:ev3dev')
+    blue_led1 = Led(name_pattern='brickpi:led1:blue:ev3dev')
+    blue_led2 = Led(name_pattern='brickpi:led2:blue:ev3dev')
 
     LED1 = ( blue_led1, )
     LED2 = ( blue_led2, )
 
-    BLACK = ( 0, )
     BLUE = ( 1, )
 
     @staticmethod