Added wait and retry for "Quota limit exceeded"

This fixes #30

deemix/api/deezer.py

@@ -92,6 +92,9 @@ class Deezer:
             time.sleep(2)
             return self.api_call(method, args)
         if 'error' in result_json.keys():
+            if result_json['error']['code'] == 4:
+                time.sleep(5)
+                return self.api_call(method, args)
             raise APIError(result_json)
         return result_json