Added User Model
Added user import form and methods
Added roles and memberships

(and a quick and dirty setup method)
Added bookings model
Added bookings association to User
Added bookings association to Title
Added racksh for console access
Added login form
Enabled sessions and added login route

(w/ faked login method)
Added before filter and logout
Added alternative form for logged in users
Changed to separate login windows

In order to reduce user-checking logic later on
Added whitespace
Implemented bookings and canceling of bookings
Added loan class
Added librarian role
Changed book view to look like title view
Added librarian? method to User
Added loan association to Book
Hacks to test librarian functionality