update task manager for edge and core (#289)

Author: saimonation

cterasdk/core/taskmgr.py

@@ -31,7 +31,7 @@ def status(self, ref):
         :param str ref: Task reference
         """
         task = Task(self._core, ref)
-        return task.status()
+        return task.get_task_status()
 
     def wait(self, ref, retries=100, seconds=1):
         """

cterasdk/edge/taskmgr.py

@@ -38,7 +38,7 @@ def status(self, ref):
         :param str ref: Task reference
         """
         task = Task(self._edge, ref)
-        return task.status()
+        return task.get_task_status()
 
     def running(self):
         """