Moved hand tracker from source package to test applications.

src/__init__.py

 from logger import Logger
 from drivers import create_driver
 from tracker import GestureTracker, Gesture
+from trackers import register_tracker
 from geometry import Positionable
 from areas import *

src/trackers/__init__.py

 from basic import BasicEventTracker
 from tap import TapTracker
 from transform import TransformationTracker
-from hand import HandTracker
 
 
 # Map of gesture type to tracker type
 _tracker_types = {}
 
 
-def _register_tracker(tracker_type):
+def register_tracker(tracker_type):
     tracker_type.gesture_types = \
             [gesture._type for gesture in tracker_type.supported_gestures]
 
@@ -29,7 +28,6 @@ def create_tracker(gesture_type, widget):
     return _tracker_types[gesture_type](widget)
 
 
-_register_tracker(BasicEventTracker)
-_register_tracker(TapTracker)
-_register_tracker(TransformationTracker)
-_register_tracker(HandTracker)
+register_tracker(BasicEventTracker)
+register_tracker(TapTracker)
+register_tracker(TransformationTracker)

src/trackers/hand.py → tests/hand.py

-from ..tracker import GestureTracker, Gesture
+from src.tracker import GestureTracker, Gesture
 
 
 class HandGesture(Gesture):

tests/testapp.py

@@ -6,6 +6,9 @@ from math import pi, tan
 
 import src as mt
 from utils import BoundingBoxArea, Flick, FlickThread, GtkEventWindow
+from hand import HandTracker
+
+mt.register_tracker(HandTracker)
 
 
 RED = 1, 0, 0