changed naming convention from keys to key

vars.py

@@ -4,6 +4,6 @@ key = ''
 broker_url =  'amqp://' + id + ':' + password + '@ohpc:5672/'
 message_queue =  broker_url + 'socketio'
 default_referrer = "/pun/sys/dashboard"
-username_keys = ["REMOTE_USER"]
-fullname_keys = ["HTTP_DISPLAYNAME"]
-email_keys = ["HTTP_MAIL"] 
+username_key = ["REMOTE_USER"]
+fullname_key = ["HTTP_DISPLAYNAME"]
+email_key = ["HTTP_MAIL"]