clean up check for authenticated users
clean up check for authenticated users

'user.is_authenticated' is clearer than 'not user.is_anonymous'.

Signed-off-by: Tim Henigan <87cde53fee35ccd1f5f73fcc5c91a1926c74a61a@gmail.com>

Kashomon/online-ratings,Kashomon/online-ratings,duckpunch/online-ratings,usgo/online-ratings,Kashomon/online-ratings,usgo/online-ratings,usgo/online-ratings,duckpunch/online-ratings