adapt BATCAVE's URL change: /status.json instead of /status

modules/batcave/client.py

@@ -87,5 +87,5 @@ class BatcaveClient(object):
         return self.__load_response(url, 'providers')
 
     def get_status(self):
-        url = 'status'
+        url = 'status.json'
         return self.__load_response(url, 'status')