Change preference handling in add-on to keep social.activeProviders preference clean
Merge pull request #52 from Standard8/preference_improve

Change preference handling in add-on to keep social.activeProviders clean
Start guest login automatically on the mobile page if Persona isn't available.
Validate the guest login when pressing 'enter' on the mobile page.
Merge pull request #54 from fqueze/work-offline-mobile

Work offline mobile