Merge branch 'fix_issue_1'

Conflicts:
	async/pool.py

Author: Byron

async/pool.py

@@ -508,4 +508,7 @@ class ThreadPool(Pool):
     """A pool using threads as worker"""
     WorkerCls = WorkerThread
     LockCls = Lock
+        # NOTE: Since threading.Lock is a method not a class, we need to prevent
+        # conversion to an unbound method.
+    LockCls = staticmethod(Lock)
     TaskQueueCls = AsyncQueue