set Union ranking priviledge

I can't test it in my local environment because I can't log in via github. When I logged in with admin account, the user seems to be nil and still can't test it.

Then I tried to deploy it to github, but failed in the beginning because it is complaining about bootstrap and jquery, after moving them to top level it worked but still can' t logged in because github complaining about different uri.

Anyway... please help me test the changes I made to 'app/controllers/records_controller.rb' file and just ignore the others. Just in case I messed up, I created another branch for this... You can consider pull this to another branch before making sure it works.