When a new custom Provider is added, the list from ProviderListFragment is not update.
Since the new provider is not added until the ProviderAPI has downloaded provider.json file from custom url, I have first to notify ConfigurationWizard activity through a ResultReceiver object that the download is finished then, I have to update the ProviderListFragment from ConfigurationWizard.
(from redmine: created on 2013-02-12, closed on 2013-02-12)