Google Code-in

At time of login via OAuth the notices are wrongly shown and sometimes delayed too. See this for reference - https://drive.google.com/open?id=1w9tc4kIkoLJ5tvceoyQ1-kO_yug2pMDR We'll need to replicate the types of alerts shown in non-oauth login, including the "your account was banned" type message and others

The link to file which requires help with notice - https://github.com/publiclab/plots2/blob/master/app/controllers/user_sessions_controller.rb#L58