Added controller method verify_logged_in which has the functionality of
either doing nothing if the user is logged in, or redirecting them to the authentication page
if they are. If they successfully authenticate, they will then be forwarded to their original destination
See examples of use in conversations_controller and commission_request_tempaltes_controller
Merge branch 'backwards_redirect'
Merging with backwards redirect branch. See commit 678f5db for details.