Fix bugs in stepper

kiln/stepper.py

@@ -62,12 +62,12 @@ class Stepper(threading.Thread):
                 self._step_noblock(step, speed)
 
             try:
-                step, speed = self.queue.get(True, self.timeout)
+                step, speed, block = self.queue.get(True, self.timeout)
             except Queue.Empty:
                 #handle the timeout, turn off all pins
                 for pin in self.pins:
                     GPIO.output(pin, False)
-                step, speed = self.queue.get()
+                step, speed, block = self.queue.get()
 
         for pin in self.pins:
             GPIO.output(pin, False)

kiln/test_stepper.py

@@ -3,11 +3,11 @@ import stepper
 
 def test_noblock():
 	reg = Regulator(ignite_pin=None)
-	reg.start()
 
 	reg.ignite()
 	reg.set(.5)
 	time.sleep(.5)
 	reg.set(.1)
 	time.sleep(.5)
-	reg.set(.5, block=True)
+	reg.set(.5, block=True)
+	return reg