Amendments

- Setting the route to always go to the login page when they go to the
site instead of the home page. This is cause it prevents the error
message saying that they aren't authorised to access the page and it is
very misleading.
- Providing a better error message in the Session->Auth object when the
user tries to access a page that they don't have permission to access.
- Making sure that the success message is displayed upon logging out.