moved static methods to module functions

medic is now sentinel and runs in it's own process
sentinel shutdown procedure more stable

django_q/tests/tasks.py

@@ -1,7 +1,7 @@
 import time
 
 # simple countdown
-def count(n):
+def countdown(n):
     start_time = time.time()
     while n > 0:
         n -= 1

django_q/tests/test_qworker.py

@@ -1,11 +1,15 @@
+import sys, os
+myPath = os.path.dirname(os.path.abspath(__file__))
+sys.path.insert(0, myPath + '/../')
+
 import pytest
 from django_q import Cluster
 
 
-@pytest.fixture
-def qworker():
+@pytest.fixture(scope='session')
+def cluster():
     return Cluster()
 
 
-def test_worker(qworker):
-    assert len(qworker.stable) == qworker.stable_size
+def test_worker(cluster):
+    assert len(cluster.stable) == cluster.stable_size