Added sessions controller and form partials for login and signup.  Also added lightbox background and javascript event listeners for fading it in and out
Added create method to users controller for signup.  Just need to implement the view and it should work
Finished lightbox styling and form functionality.  Need to add in some small view logic to make them disappear if not logged in.
Login and Signup functionality complete.  Also added in small view logic to display login/signup links or a signout button based on whether there was a current session in place.
Merge pull request #10 from nickcan/login_signup

Login signup