Filter out non-comment stories

asana_service.py

@@ -63,6 +63,6 @@ class AsanaService(object):
         ))
     
     def get_stories(self, task_id):
-        return self.__wrap__(Story,
-                             self.client.stories.find_by_task(task_id)
-                            )
+        stories = self.client.stories.find_by_task(task_id)
+        filtered_stories = filter(lambda s: s['type'] == 'comment', stories)
+        return self.__wrap__(Story, filtered_stories)

ui/task_details.py

@@ -26,10 +26,12 @@ class TaskDetails(object):
                 TaskRow(t, on_subtask_click) for t in task.subtasks()
             ]))
 
-        body = body + [
-            urwid.Divider('-'),
-            Stories(stories).component()
-        ]
+        stories = list(stories)
+        if (len(stories) > 0):
+            body = body + [
+                urwid.Divider('-'),
+                Stories(stories).component()
+            ]
 
         self.details = urwid.ListBox(urwid.SimpleFocusListWalker(body))