Implement logout from any pages

[aonanam]

At the moment, you can only logout from the profile page, which takes a few pages to get to.

[rkrishnasanka]

Well here's how you can logout, essentially all you need to do is add a link to /logout and add a snippet of code similar to this into the nodejs application.

app.get('/logout', function(req, res){
  req.logout();
  res.redirect('/');
});