Need to click in 'Persist settings' after entering an api key

[freddycoder]

In the new version, after entering an Api key in the main page. The user need to click on Persist settings in order to be able to call the api.

If the user does click on persist, he get an error where is unclear what is appening.

In this case the API return a 203 http response, witch is a success status code. So the serializer try to deserialize de response an failed.